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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.85 by root, Sat Oct 28 23:32:29 2006 UTC vs.
Revision 1.260 by root, Tue Jul 24 04:58:59 2018 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#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#ifndef makedev
49#define IDLE_TIMEOUT 10 169# define makedev(maj,min) (((maj) << 8) | (min))
50
51/* used for struct dirent, AIX doesn't provide it */
52#ifndef NAME_MAX
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 170#endif
171#ifndef major
172# define major(dev) ((dev) >> 8)
79#endif 173#endif
174#ifndef minor
175# define minor(dev) ((dev) & 0xff)
176#endif
80 177
81/* buffer size for various temporary buffers */ 178#if PAGESIZE <= 0
82#define AIO_BUFSIZE 65536 179# define PAGESIZE sysconf (_SC_PAGESIZE)
180#endif
83 181
84#define dBUF \ 182/*****************************************************************************/
85 char *aio_buf; \ 183
86 LOCK (wrklock); \ 184#if !_POSIX_MAPPED_FILES
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 185# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
88 UNLOCK (wrklock); \ 186# define munmap(addr,length) EIO_ENOSYS ()
89 if (!aio_buf) \ 187#endif
188
189#if !_POSIX_MEMORY_PROTECTION
190# define mprotect(addr,len,prot) EIO_ENOSYS ()
191#endif
192
193#if !MREMAP_MAYMOVE
194# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
195#endif
196
197#define FOREIGN_MAGIC PERL_MAGIC_ext
198
199static int ecb_cold
200mmap_free (pTHX_ SV *sv, MAGIC *mg)
201{
202 int old_errno = errno;
203 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
204 errno = old_errno;
205
206 mg->mg_obj = 0; /* just in case */
207
208 SvREADONLY_off (sv);
209
210 if (SvPVX (sv) != mg->mg_ptr)
211 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
212
213 SvCUR_set (sv, 0);
214 SvPVX (sv) = 0;
215 SvOK_off (sv);
216
90 return -1; 217 return 0;
218}
91 219
92enum { 220static MGVTBL mmap_vtbl = {
93 REQ_QUIT, 221 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,
102 REQ_GROUP, REQ_NOP,
103 REQ_BUSY,
104}; 222};
105 223
106#define AIO_REQ_KLASS "IO::AIO::REQ" 224static int ecb_cold
107#define AIO_GRP_KLASS "IO::AIO::GRP" 225sysfree_free (pTHX_ SV *sv, MAGIC *mg)
108
109typedef struct aio_cb
110{ 226{
111 struct aio_cb *volatile next; 227 free (mg->mg_ptr);
228 mg->mg_obj = 0; /* just in case */
112 229
113 SV *data, *callback; 230 SvREADONLY_off (sv);
114 SV *fh, *fh2;
115 void *dataptr, *data2ptr;
116 Stat_t *statdata;
117 off_t offset;
118 size_t length;
119 ssize_t result;
120 231
121 STRLEN dataoffset; 232 if (SvPVX (sv) != mg->mg_ptr)
122 int type; 233 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
123 int fd, fd2;
124 int errorno;
125 mode_t mode; /* open */
126 234
127 unsigned char flags; 235 SvCUR_set (sv, 0);
128 unsigned char pri; 236 SvPVX (sv) = 0;
237 SvOK_off (sv);
129 238
130 SV *self; /* the perl counterpart of this request, if any */ 239 return 0;
131 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 240}
132} aio_cb;
133 241
134enum { 242static MGVTBL sysfree_vtbl = {
135 FLAG_CANCELLED = 0x01, 243 0, 0, 0, 0, sysfree_free
136}; 244};
137 245
138typedef aio_cb *aio_req; 246/*****************************************************************************/
139typedef aio_cb *aio_req_ornot;
140 247
141enum { 248/* helper: set scalar to foreign ptr with custom free */
142 PRI_MIN = -4, 249static void
143 PRI_MAX = 4, 250sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
144
145 DEFAULT_PRI = 0,
146 PRI_BIAS = -PRI_MIN,
147 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
148};
149
150#define AIO_TICKS ((1000000 + 1023) >> 10)
151
152static unsigned int max_poll_time = 0;
153static unsigned int max_poll_reqs = 0;
154
155/* calculcate time difference in ~1/AIO_TICKS of a second */
156static int tvdiff (struct timeval *tv1, struct timeval *tv2)
157{ 251{
158 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 252 sv_force_normal (sv);
159 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
160}
161 253
162static int next_pri = DEFAULT_PRI + PRI_BIAS; 254 /* we store the length in mg_obj, as namlen is I32 :/ */
255 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
256 ->mg_obj = (SV *)length;
163 257
164static unsigned int started, idle, wanted; 258 SvUPGRADE (sv, SVt_PV); /* nop... */
165 259
166#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 260 if (SvLEN (sv))
167# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 261 Safefree (SvPVX (sv));
168#else
169# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
170#endif
171 262
172#define LOCK(mutex) pthread_mutex_lock (&(mutex)) 263 SvPVX (sv) = (char *)addr;
173#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) 264 SvCUR_set (sv, length);
265 SvLEN_set (sv, 0);
266 SvPOK_only (sv);
267}
174 268
175/* worker threads management */ 269static void
176static pthread_mutex_t wrklock = AIO_MUTEX_INIT; 270sv_clear_foreign (SV *sv)
177
178typedef struct worker {
179 /* locked by wrklock */
180 struct worker *prev, *next;
181
182 pthread_t tid;
183
184 /* locked by reslock, reqlock or wrklock */
185 aio_req req; /* currently processed request */
186 void *dbuf;
187 DIR *dirp;
188} worker;
189
190static worker wrk_first = { &wrk_first, &wrk_first, 0 };
191
192static void worker_clear (worker *wrk)
193{ 271{
194 if (wrk->dirp) 272 /* todo: iterate over magic and only free ours, but of course */
273 /* the perl5porters will call that (correct) behaviour buggy */
274 sv_unmagic (sv, FOREIGN_MAGIC);
275}
276
277/*****************************************************************************/
278
279/* defines all sorts of constants to 0 unless they are already defined */
280/* also provides const_iv_ and const_niv_ macros for them */
281#include "def0.h"
282
283/*****************************************************************************/
284
285static void
286fiemap (eio_req *req)
287{
288 req->result = -1;
289
290#if HAVE_FIEMAP
291 /* assume some c99 */
292 struct fiemap *fiemap = 0;
293 size_t end_offset;
294 int count = req->int3;
295
296 req->flags |= EIO_FLAG_PTR1_FREE;
297
298 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
299 /* increase in 3.5kb steps */
300 if (count < 0)
301 count = 8;
302
303 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
304 errno = ENOMEM;
305 if (!fiemap)
306 return;
307
308 req->ptr1 = fiemap;
309
310 fiemap->fm_start = req->offs;
311 fiemap->fm_length = req->size;
312 fiemap->fm_flags = req->int2;
313 fiemap->fm_extent_count = count;
314
315 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
316 return;
317
318 if (req->int3 >= 0 /* not autosizing */
319 || !fiemap->fm_mapped_extents /* no more extents */
320 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
321 goto done;
322
323 /* else we have to loop -
324 * it would be tempting (actually I tried that first) to just query the
325 * number of extents needed, but linux often feels like not returning all
326 * extents, without telling us it left any out. this complicates
327 * this quite a bit.
328 */
329
330 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
331
332 for (;;)
195 { 333 {
196 closedir (wrk->dirp); 334 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
197 wrk->dirp = 0; 335 char scratch[3072];
198 } 336 struct fiemap *incmap = (struct fiemap *)scratch;
199 337
200 if (wrk->dbuf) 338 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
201 { 339 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
202 free (wrk->dbuf); 340 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
203 wrk->dbuf = 0; 341 incmap->fm_flags = fiemap->fm_flags;
204 } 342 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
205}
206 343
207static void worker_free (worker *wrk) 344 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
208{
209 wrk->next->prev = wrk->prev;
210 wrk->prev->next = wrk->next;
211
212 free (wrk);
213}
214
215static volatile unsigned int nreqs, nready, npending;
216static volatile unsigned int max_idle = 4;
217static volatile unsigned int max_outstanding = 0xffffffff;
218static int respipe [2];
219
220static pthread_mutex_t reslock = AIO_MUTEX_INIT;
221static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
222static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
223
224#if WORDACCESS_UNSAFE
225
226static unsigned int get_nready ()
227{
228 unsigned int retval;
229
230 LOCK (reqlock);
231 retval = nready;
232 UNLOCK (reqlock);
233
234 return retval;
235}
236
237static unsigned int get_npending ()
238{
239 unsigned int retval;
240
241 LOCK (reslock);
242 retval = npending;
243 UNLOCK (reslock);
244
245 return retval;
246}
247
248static unsigned int get_nthreads ()
249{
250 unsigned int retval;
251
252 LOCK (wrklock);
253 retval = started;
254 UNLOCK (wrklock);
255
256 return retval;
257}
258
259#else
260
261# define get_nready() nready
262# define get_npending() npending
263# define get_nthreads() started
264
265#endif
266
267/*
268 * a somewhat faster data structure might be nice, but
269 * with 8 priorities this actually needs <20 insns
270 * per shift, the most expensive operation.
271 */
272typedef struct {
273 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
274 int size;
275} reqq;
276
277static reqq req_queue;
278static reqq res_queue;
279
280int reqq_push (reqq *q, aio_req req)
281{
282 int pri = req->pri;
283 req->next = 0;
284
285 if (q->qe[pri])
286 {
287 q->qe[pri]->next = req;
288 q->qe[pri] = req;
289 }
290 else
291 q->qe[pri] = q->qs[pri] = req;
292
293 return q->size++;
294}
295
296aio_req reqq_shift (reqq *q)
297{
298 int pri;
299
300 if (!q->size)
301 return 0; 345 return;
302 346
303 --q->size; 347 if (!incmap->fm_mapped_extents)
348 goto done;
304 349
305 for (pri = NUM_PRI; pri--; ) 350 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
306 { 351 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
307 aio_req req = q->qs[pri]; 352 errno = ENOMEM;
308
309 if (req) 353 if (!fiemap)
354 return;
355
356 req->ptr1 = fiemap;
357
358 for (count = 0; count < incmap->fm_mapped_extents; ++count)
310 { 359 {
311 if (!(q->qs[pri] = req->next)) 360 struct fiemap_extent *e = incmap->fm_extents + count;
312 q->qe[pri] = 0;
313 361
314 return req; 362 if (e->fe_logical + e->fe_length >= end_offset)
363 goto done;
364
365 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
366
367 if (e->fe_flags & FIEMAP_EXTENT_LAST)
368 goto done;
369
315 } 370 }
316 } 371 }
317 372
318 abort (); 373done:
319} 374 req->result = 0;
320 375
321static int poll_cb (); 376#else
322static void req_invoke (aio_req req); 377 errno = ENOSYS;
378#endif
379}
380
381/*****************************************************************************/
382
383enum {
384 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
385};
386
387typedef eio_req *aio_req;
388typedef eio_req *aio_req_ornot;
389typedef eio_wd aio_wd;
390
391static SV *on_next_submit;
392static int next_pri = EIO_PRI_DEFAULT;
393static int max_outstanding;
394
395static s_epipe respipe;
396
323static void req_free (aio_req req); 397static void req_destroy (aio_req req);
324static void req_cancel (aio_req req); 398static void req_cancel (aio_req req);
325 399
400static void
401want_poll (void)
402{
403 /* write a dummy byte to the pipe so fh becomes ready */
404 s_epipe_signal (&respipe);
405}
406
407static void
408done_poll (void)
409{
410 /* read any signals sent by the worker threads */
411 s_epipe_drain (&respipe);
412}
413
326/* must be called at most once */ 414/* must be called at most once */
327static SV *req_sv (aio_req req, const char *klass) 415static SV *
416req_sv (aio_req req, HV *stash)
328{ 417{
329 if (!req->self) 418 if (!req->self)
330 { 419 {
331 req->self = (SV *)newHV (); 420 req->self = (SV *)newHV ();
332 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 421 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
333 } 422 }
334 423
335 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 424 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
336} 425}
337 426
338static aio_req SvAIO_REQ (SV *sv) 427static SV *
428newSVaio_wd (aio_wd wd)
429{
430 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
431}
432
433static aio_req
434SvAIO_REQ (SV *sv)
339{ 435{
340 MAGIC *mg; 436 MAGIC *mg;
341 437
342 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 438 if (!SvROK (sv)
439 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
440 || (SvSTASH (SvRV (sv)) != aio_grp_stash
441 && SvSTASH (SvRV (sv)) != aio_req_stash
442 && !sv_derived_from (sv, "IO::AIO::REQ")))
343 croak ("object of class " AIO_REQ_KLASS " expected"); 443 croak ("object of class IO::AIO::REQ expected");
344 444
345 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 445 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
346 446
347 return mg ? (aio_req)mg->mg_ptr : 0; 447 return mg ? (aio_req)mg->mg_ptr : 0;
348} 448}
349 449
450static aio_wd
451SvAIO_WD (SV *sv)
452{
453 if (!SvROK (sv)
454 || SvTYPE (SvRV (sv)) != SVt_PVMG
455 || SvSTASH (SvRV (sv)) != aio_wd_stash)
456 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
457
458 return (aio_wd)(long)SvIVX (SvRV (sv));
459}
460
461static SV *
462newmortalFH (int fd, int flags)
463{
464 if (fd < 0)
465 return &PL_sv_undef;
466
467 GV *gv = (GV *)sv_newmortal ();
468 char sym[64];
469 int symlen;
470
471 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
472 gv_init (gv, aio_stash, sym, symlen, 0);
473
474 symlen = snprintf (
475 sym,
476 sizeof (sym),
477 "%s&=%d",
478 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
479 fd
480 );
481
482 return do_open (gv, sym, symlen, 0, 0, 0, 0)
483 ? (SV *)gv : &PL_sv_undef;
484}
485
486static void
350static void aio_grp_feed (aio_req grp) 487aio_grp_feed (aio_req grp)
351{ 488{
352 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 489 if (grp->sv2 && SvOK (grp->sv2))
353 { 490 {
354 int old_len = grp->length;
355
356 if (grp->fh2 && SvOK (grp->fh2))
357 {
358 dSP; 491 dSP;
359 492
360 ENTER; 493 ENTER;
361 SAVETMPS; 494 SAVETMPS;
362 PUSHMARK (SP); 495 PUSHMARK (SP);
363 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 496 XPUSHs (req_sv (grp, aio_grp_stash));
364 PUTBACK; 497 PUTBACK;
365 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 498 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
366 SPAGAIN; 499 SPAGAIN;
367 FREETMPS; 500 FREETMPS;
368 LEAVE; 501 LEAVE;
369 }
370
371 /* stop if no progress has been made */
372 if (old_len == grp->length)
373 {
374 SvREFCNT_dec (grp->fh2);
375 grp->fh2 = 0;
376 break;
377 }
378 } 502 }
379} 503}
380 504
381static void aio_grp_dec (aio_req grp) 505static void
506req_submit (eio_req *req)
382{ 507{
383 --grp->length; 508 eio_submit (req);
384 509
385 /* call feeder, if applicable */ 510 if (expect_false (on_next_submit))
386 aio_grp_feed (grp);
387
388 /* finish, if done */
389 if (!grp->length && grp->fd)
390 { 511 {
391 req_invoke (grp); 512 dSP;
392 req_free (grp); 513 SV *cb = sv_2mortal (on_next_submit);
514
515 on_next_submit = 0;
516
517 PUSHMARK (SP);
518 PUTBACK;
519 call_sv (cb, G_DISCARD | G_EVAL);
393 } 520 }
394} 521}
395 522
523static int
396static void req_invoke (aio_req req) 524req_invoke (eio_req *req)
397{ 525{
398 dSP; 526 if (req->flags & FLAG_SV2_RO_OFF)
527 SvREADONLY_off (req->sv2);
399 528
400 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 529 if (!EIO_CANCELLED (req) && req->callback)
401 { 530 {
531 dSP;
532 static SV *sv_result_cache; /* caches the result integer SV */
533 SV *sv_result;
534
402 ENTER; 535 ENTER;
403 SAVETMPS; 536 SAVETMPS;
404 PUSHMARK (SP); 537 PUSHMARK (SP);
405 EXTEND (SP, 1); 538 EXTEND (SP, 1);
406 539
540 /* do not recreate the result IV from scratch each time */
541 if (expect_true (sv_result_cache))
542 {
543 sv_result = sv_result_cache; sv_result_cache = 0;
544 SvIV_set (sv_result, req->result);
545 SvIOK_only (sv_result);
546 }
547 else
548 {
549 sv_result = newSViv (req->result);
550 SvREADONLY_on (sv_result);
551 }
552
407 switch (req->type) 553 switch (req->type)
408 { 554 {
555 case EIO_WD_OPEN:
556 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
557 break;
558
409 case REQ_READDIR: 559 case EIO_READDIR:
410 { 560 {
411 SV *rv = &PL_sv_undef; 561 SV *rv = &PL_sv_undef;
412 562
413 if (req->result >= 0) 563 if (req->result >= 0)
414 { 564 {
415 int i; 565 int i;
416 char *buf = req->data2ptr; 566 char *names = (char *)req->ptr2;
567 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
417 AV *av = newAV (); 568 AV *av = newAV ();
418 569
419 av_extend (av, req->result - 1); 570 av_extend (av, req->result - 1);
420 571
421 for (i = 0; i < req->result; ++i) 572 for (i = 0; i < req->result; ++i)
422 { 573 {
423 SV *sv = newSVpv (buf, 0); 574 if (req->int1 & EIO_READDIR_DENTS)
575 {
576 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
424 577
578 if (req->int1 & EIO_READDIR_CUSTOM2)
579 {
580 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
581 AV *avent = newAV ();
582
583 av_extend (avent, 2);
584
585 if (!sv_type [ent->type])
586 {
587 sv_type [ent->type] = newSViv (ent->type);
588 SvREADONLY_on (sv_type [ent->type]);
589 }
590
591 av_store (avent, 0, namesv);
592 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
593 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
594
595 av_store (av, i, newRV_noinc ((SV *)avent));
596 }
597 else
425 av_store (av, i, sv); 598 av_store (av, i, namesv);
599
600 ++ent;
601 }
602 else
603 {
604 SV *name = newSVpv (names, 0);
605 av_store (av, i, name);
426 buf += SvCUR (sv) + 1; 606 names += SvCUR (name) + 1;
607 }
427 } 608 }
428 609
429 rv = sv_2mortal (newRV_noinc ((SV *)av)); 610 rv = sv_2mortal (newRV_noinc ((SV *)av));
430 } 611 }
431 612
432 PUSHs (rv); 613 PUSHs (rv);
614
615 if (req->int1 & EIO_READDIR_CUSTOM1)
616 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
433 } 617 }
434 break; 618 break;
435 619
436 case REQ_OPEN: 620 case EIO_OPEN:
621 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
622 break;
623
624 case EIO_STATVFS:
625 case EIO_FSTATVFS:
437 { 626 {
438 /* convert fd to fh */ 627 SV *rv = &PL_sv_undef;
439 SV *fh; 628
629#ifndef _WIN32
630 if (req->result >= 0)
631 {
632 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
633 HV *hv = newHV ();
634 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
635 * chooses to make it a struct.
636 */
637 unsigned long fsid = 0;
638 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
440 639
441 PUSHs (sv_2mortal (newSViv (req->result))); 640 rv = sv_2mortal (newRV_noinc ((SV *)hv));
442 PUTBACK;
443 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
444 SPAGAIN;
445 641
446 fh = SvREFCNT_inc (POPs); 642 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
643 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
644 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
645 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
646 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
647 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
648 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
649 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
650 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
651 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
652 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
653 }
654#endif
447 655
448 PUSHMARK (SP); 656 PUSHs (rv);
449 XPUSHs (sv_2mortal (fh));
450 } 657 }
658
451 break; 659 break;
452 660
453 case REQ_GROUP: 661 case EIO_GROUP:
454 req->fd = 2; /* mark group as finished */ 662 req->int1 = 2; /* mark group as finished */
455 663
456 if (req->data) 664 if (req->sv1)
457 { 665 {
458 int i; 666 int i;
459 AV *av = (AV *)req->data; 667 AV *av = (AV *)req->sv1;
460 668
461 EXTEND (SP, AvFILL (av) + 1); 669 EXTEND (SP, AvFILL (av) + 1);
462 for (i = 0; i <= AvFILL (av); ++i) 670 for (i = 0; i <= AvFILL (av); ++i)
463 PUSHs (*av_fetch (av, i, 0)); 671 PUSHs (*av_fetch (av, i, 0));
464 } 672 }
465 break; 673 break;
466 674
467 case REQ_NOP: 675 case EIO_NOP:
468 case REQ_BUSY: 676 case EIO_BUSY:
469 break; 677 break;
470 678
679 case EIO_READLINK:
680 case EIO_REALPATH:
681 if (req->result > 0)
682 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
683 break;
684
685 case EIO_STAT:
686 case EIO_LSTAT:
687 case EIO_FSTAT:
688 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
689
690 if (!(PL_laststatval = req->result))
691 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
692 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
693
694 PUSHs (sv_result);
695 break;
696
697 case EIO_SEEK:
698 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
699 break;
700
701 case EIO_READ:
702 {
703 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
704 *SvEND (req->sv2) = 0;
705 SvPOK_only (req->sv2);
706 SvSETMAGIC (req->sv2);
707 PUSHs (sv_result);
708 }
709 break;
710
711 case EIO_SLURP:
712 {
713 if (req->result >= 0)
714 {
715 /* if length was originally not known, we steal the malloc'ed memory */
716 if (req->flags & EIO_FLAG_PTR2_FREE)
717 {
718 req->flags &= ~EIO_FLAG_PTR2_FREE;
719 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
720 }
721 else
722 {
723 SvCUR_set (req->sv2, req->result);
724 *SvEND (req->sv2) = 0;
725 SvPOK_only (req->sv2);
726 }
727
728 SvSETMAGIC (req->sv2);
729 }
730
731 PUSHs (sv_result);
732 }
733 break;
734
735 case EIO_CUSTOM:
736 if (req->feed == fiemap)
737 {
738#if HAVE_FIEMAP
739 if (!req->result)
740 {
741 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
742
743 if (fiemap->fm_extent_count)
744 {
745 AV *av = newAV ();
746 int i;
747
748 while (fiemap->fm_mapped_extents)
749 {
750 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
751 AV *ext_av = newAV ();
752
753 av_store (ext_av, 3, newSVuv (extent->fe_flags));
754 av_store (ext_av, 2, newSVval64 (extent->fe_length));
755 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
756 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
757
758 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
759 }
760
761 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
762 }
763 else
764 {
765 SvIV_set (sv_result, fiemap->fm_mapped_extents);
766 PUSHs (sv_result);
767 }
768 }
769#endif
770 }
771 else
772 PUSHs (sv_result);
773 break;
774
775 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
776 if (req->result > 0)
777 SvIV_set (sv_result, 0);
778 /* FALLTHROUGH */
779
471 default: 780 default:
472 PUSHs (sv_2mortal (newSViv (req->result))); 781 PUSHs (sv_result);
473 break; 782 break;
474 } 783 }
475 784
476 errno = req->errorno; 785 errno = req->errorno;
477 786
478 PUTBACK; 787 PUTBACK;
479 call_sv (req->callback, G_VOID | G_EVAL); 788 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
480 SPAGAIN; 789 SPAGAIN;
790
791 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
792 SvREFCNT_dec (sv_result);
793 else
794 sv_result_cache = sv_result;
481 795
482 FREETMPS; 796 FREETMPS;
483 LEAVE; 797 LEAVE;
798
799 PUTBACK;
484 } 800 }
485 801
486 if (req->grp) 802 return !!SvTRUE (ERRSV);
487 {
488 aio_req grp = req->grp;
489
490 /* unlink request */
491 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
492 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
493
494 if (grp->grp_first == req)
495 grp->grp_first = req->grp_next;
496
497 aio_grp_dec (grp);
498 }
499
500 if (SvTRUE (ERRSV))
501 {
502 req_free (req);
503 croak (0);
504 }
505} 803}
506 804
507static void req_free (aio_req req) 805static void
806req_destroy (aio_req req)
508{ 807{
509 if (req->self) 808 if (req->self)
510 { 809 {
511 sv_unmagic (req->self, PERL_MAGIC_ext); 810 sv_unmagic (req->self, PERL_MAGIC_ext);
512 SvREFCNT_dec (req->self); 811 SvREFCNT_dec (req->self);
513 } 812 }
514 813
515 SvREFCNT_dec (req->data);
516 SvREFCNT_dec (req->fh); 814 SvREFCNT_dec (req->sv1);
517 SvREFCNT_dec (req->fh2); 815 SvREFCNT_dec (req->sv2);
816 SvREFCNT_dec (req->sv3);
817 SvREFCNT_dec (req->sv4);
518 SvREFCNT_dec (req->callback); 818 SvREFCNT_dec (req->callback);
519 Safefree (req->statdata);
520 819
521 if (req->type == REQ_READDIR)
522 free (req->data2ptr);
523
524 Safefree (req); 820 free (req);
525} 821}
526 822
823static void
527static void req_cancel_subs (aio_req grp) 824req_cancel_subs (aio_req grp)
528{ 825{
529 aio_req sub;
530
531 if (grp->type != REQ_GROUP) 826 if (grp->type != EIO_GROUP)
532 return; 827 return;
533 828
534 SvREFCNT_dec (grp->fh2); 829 SvREFCNT_dec (grp->sv2);
535 grp->fh2 = 0; 830 grp->sv2 = 0;
536 831
537 for (sub = grp->grp_first; sub; sub = sub->grp_next) 832 eio_grp_cancel (grp);
538 req_cancel (sub);
539} 833}
540 834
541static void req_cancel (aio_req req) 835static void ecb_cold
836create_respipe (void)
542{ 837{
543 req->flags |= FLAG_CANCELLED; 838 if (s_epipe_renew (&respipe))
544 839 croak ("IO::AIO: unable to initialize result pipe");
545 req_cancel_subs (req);
546} 840}
547 841
548static void *aio_proc(void *arg); 842static void
549 843poll_wait (void)
550static void start_thread (void)
551{ 844{
552 sigset_t fullsigset, oldsigset;
553 pthread_attr_t attr;
554
555 worker *wrk = calloc (1, sizeof (worker));
556
557 if (!wrk)
558 croak ("unable to allocate worker thread data");
559
560 pthread_attr_init (&attr);
561 pthread_attr_setstacksize (&attr, STACKSIZE);
562 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
563#ifdef PTHREAD_SCOPE_PROCESS
564 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
565#endif
566
567 sigfillset (&fullsigset);
568
569 LOCK (wrklock);
570 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
571
572 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
573 {
574 wrk->prev = &wrk_first;
575 wrk->next = wrk_first.next;
576 wrk_first.next->prev = wrk;
577 wrk_first.next = wrk;
578 ++started;
579 }
580 else
581 free (wrk);
582
583 sigprocmask (SIG_SETMASK, &oldsigset, 0);
584 UNLOCK (wrklock);
585}
586
587static void maybe_start_thread ()
588{
589 if (get_nthreads () >= wanted)
590 return;
591
592 /* todo: maybe use idle here, but might be less exact */
593 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
594 return;
595
596 start_thread ();
597}
598
599static void req_send (aio_req req)
600{
601 ++nreqs;
602
603 LOCK (reqlock);
604 ++nready;
605 reqq_push (&req_queue, req);
606 pthread_cond_signal (&reqwait);
607 UNLOCK (reqlock);
608
609 maybe_start_thread ();
610}
611
612static void end_thread (void)
613{
614 aio_req req;
615
616 Newz (0, req, 1, aio_cb);
617
618 req->type = REQ_QUIT;
619 req->pri = PRI_MAX + PRI_BIAS;
620
621 LOCK (reqlock);
622 reqq_push (&req_queue, req);
623 pthread_cond_signal (&reqwait);
624 UNLOCK (reqlock);
625
626 LOCK (wrklock);
627 --started;
628 UNLOCK (wrklock);
629}
630
631static void set_max_idle (int nthreads)
632{
633 if (WORDACCESS_UNSAFE) LOCK (reqlock);
634 max_idle = nthreads <= 0 ? 1 : nthreads;
635 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
636}
637
638static void min_parallel (int nthreads)
639{
640 if (wanted < nthreads)
641 wanted = nthreads;
642}
643
644static void max_parallel (int nthreads)
645{
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (started > wanted)
650 end_thread ();
651}
652
653static void poll_wait ()
654{
655 fd_set rfd;
656
657 while (nreqs) 845 while (eio_nreqs ())
658 { 846 {
659 int size; 847 int size;
660 if (WORDACCESS_UNSAFE) LOCK (reslock); 848
849 X_LOCK (EIO_POOL->reslock);
661 size = res_queue.size; 850 size = EIO_POOL->res_queue.size;
662 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 851 X_UNLOCK (EIO_POOL->reslock);
663 852
664 if (size) 853 if (size)
665 return; 854 return;
666 855
667 maybe_start_thread (); 856 etp_maybe_start_thread (EIO_POOL);
668 857
669 FD_ZERO(&rfd); 858 s_epipe_wait (&respipe);
670 FD_SET(respipe [0], &rfd);
671
672 select (respipe [0] + 1, &rfd, 0, 0, 0);
673 } 859 }
674} 860}
675 861
676static int poll_cb () 862static int
863poll_cb (void)
677{ 864{
678 dSP;
679 int count = 0;
680 int maxreqs = max_poll_reqs;
681 int do_croak = 0;
682 struct timeval tv_start, tv_now;
683 aio_req req;
684
685 if (max_poll_time)
686 gettimeofday (&tv_start, 0);
687
688 for (;;) 865 for (;;)
689 { 866 {
690 for (;;) 867 int res = eio_poll ();
868
869 if (res > 0)
870 croak (0);
871
872 if (!max_outstanding || max_outstanding > eio_nreqs ())
873 return res;
874
875 poll_wait ();
876 }
877}
878
879static void ecb_cold
880reinit (void)
881{
882 create_respipe ();
883
884 if (eio_init (want_poll, done_poll) < 0)
885 croak ("IO::AIO: unable to initialise eio library");
886}
887
888/*****************************************************************************/
889
890static SV *
891get_cb (SV *cb_sv)
892{
893 SvGETMAGIC (cb_sv);
894 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
895}
896
897static aio_req ecb_noinline
898dreq (SV *callback)
899{
900 SV *cb_cv;
901 aio_req req;
902 int req_pri = next_pri;
903 next_pri = EIO_PRI_DEFAULT;
904
905 cb_cv = get_cb (callback);
906
907 req = calloc (sizeof (*req), 1);
908 if (!req)
909 croak ("out of memory during eio_req allocation");
910
911 req->callback = SvREFCNT_inc (cb_cv);
912 req->pri = req_pri;
913
914 return req;
915}
916
917#define dREQ \
918 aio_req req = dreq (callback); \
919
920#define REQ_SEND \
921 PUTBACK; \
922 req_submit (req); \
923 SPAGAIN; \
924 \
925 if (GIMME_V != G_VOID) \
926 XPUSHs (req_sv (req, aio_req_stash));
927
928ecb_inline void
929req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
930{
931 if (expect_false (SvROK (path)))
932 {
933 SV *rv = SvRV (path);
934 SV *wdob;
935
936 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
691 { 937 {
692 maybe_start_thread (); 938 path = AvARRAY (rv)[1];
939 wdob = AvARRAY (rv)[0];
693 940
694 LOCK (reslock); 941 if (SvOK (wdob))
695 req = reqq_shift (&res_queue);
696
697 if (req)
698 { 942 {
699 --npending; 943 *wd = SvAIO_WD (wdob);
700 944 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
701 if (!res_queue.size)
702 {
703 /* read any signals sent by the worker threads */
704 char buf [32];
705 while (read (respipe [0], buf, 32) == 32)
706 ;
707 }
708 }
709
710 UNLOCK (reslock);
711
712 if (!req)
713 break;
714
715 --nreqs;
716
717 if (req->type == REQ_GROUP && req->length)
718 {
719 req->fd = 1; /* mark request as delayed */
720 continue;
721 } 945 }
722 else 946 else
723 { 947 *wd = EIO_INVALID_WD;
724 if (req->type == REQ_READ)
725 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
726
727 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
728 SvREADONLY_off (req->data);
729
730 if (req->statdata)
731 {
732 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
733 PL_laststatval = req->result;
734 PL_statcache = *(req->statdata);
735 }
736
737 req_invoke (req);
738
739 count++;
740 }
741
742 req_free (req);
743
744 if (maxreqs && !--maxreqs)
745 break;
746
747 if (max_poll_time)
748 {
749 gettimeofday (&tv_now, 0);
750
751 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
752 break;
753 }
754 } 948 }
949 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
950 {
951 *wd = (aio_wd)(long)SvIVX (rv);
952 *wdsv = SvREFCNT_inc_NN (rv);
953 *ptr = ".";
954 return; /* path set to "." */
955 }
956 else
957 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
958 }
755 959
756 if (nreqs <= max_outstanding) 960 *pathsv = newSVsv (path);
961 *ptr = SvPVbyte_nolen (*pathsv);
962}
963
964static void ecb_noinline
965req_set_path1 (aio_req req, SV *path)
966{
967 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
968}
969
970static void ecb_noinline
971req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
972{
973 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
974
975 switch (SvTYPE (rv))
976 {
977 case SVt_PVIO:
978 case SVt_PVLV:
979 case SVt_PVGV:
980 req->type = type_fh;
981 req->sv1 = newSVsv (fh_or_path);
982 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
757 break; 983 break;
758 984
759 poll_wait (); 985 default:
760 986 req->type = type_path;
761 ++maxreqs; 987 req_set_path1 (req, fh_or_path);
988 break;
762 } 989 }
763
764 return count;
765}
766
767static void create_pipe ()
768{
769 if (pipe (respipe))
770 croak ("unable to initialize result pipe");
771
772 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
773 croak ("cannot set result pipe to nonblocking mode");
774
775 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
776 croak ("cannot set result pipe to nonblocking mode");
777} 990}
778 991
779/*****************************************************************************/ 992/*****************************************************************************/
780/* work around various missing functions */
781 993
782#if !HAVE_PREADWRITE 994static void
783# define pread aio_pread 995ts_set (struct timespec *ts, NV value)
784# define pwrite aio_pwrite
785
786/*
787 * make our pread/pwrite safe against themselves, but not against
788 * normal read/write by using a mutex. slows down execution a lot,
789 * but that's your problem, not mine.
790 */
791static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
792
793static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
794{ 996{
795 ssize_t res; 997 ts->tv_sec = value;
796 off_t ooffset; 998 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
797
798 LOCK (preadwritelock);
799 ooffset = lseek (fd, 0, SEEK_CUR);
800 lseek (fd, offset, SEEK_SET);
801 res = read (fd, buf, count);
802 lseek (fd, ooffset, SEEK_SET);
803 UNLOCK (preadwritelock);
804
805 return res;
806} 999}
807 1000
808static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1001static NV
1002ts_get (const struct timespec *ts)
809{ 1003{
810 ssize_t res; 1004 return ts->tv_sec + ts->tv_nsec * 1e-9;
811 off_t ooffset;
812
813 LOCK (preadwritelock);
814 ooffset = lseek (fd, 0, SEEK_CUR);
815 lseek (fd, offset, SEEK_SET);
816 res = write (fd, buf, count);
817 lseek (fd, offset, SEEK_SET);
818 UNLOCK (preadwritelock);
819
820 return res;
821}
822#endif
823
824#if !HAVE_FDATASYNC
825# define fdatasync fsync
826#endif
827
828#if !HAVE_READAHEAD
829# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
830
831static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
832{
833 dBUF;
834
835 while (count > 0)
836 {
837 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
838
839 pread (fd, aio_buf, len, offset);
840 offset += len;
841 count -= len;
842 }
843
844 errno = 0;
845}
846
847#endif
848
849#if !HAVE_READDIR_R
850# define readdir_r aio_readdir_r
851
852static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
853
854static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
855{
856 struct dirent *e;
857 int errorno;
858
859 LOCK (readdirlock);
860
861 e = readdir (dirp);
862 errorno = errno;
863
864 if (e)
865 {
866 *res = ent;
867 strcpy (ent->d_name, e->d_name);
868 }
869 else
870 *res = 0;
871
872 UNLOCK (readdirlock);
873
874 errno = errorno;
875 return e ? 0 : -1;
876}
877#endif
878
879/* sendfile always needs emulation */
880static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
881{
882 ssize_t res;
883
884 if (!count)
885 return 0;
886
887#if HAVE_SENDFILE
888# if __linux
889 res = sendfile (ofd, ifd, &offset, count);
890
891# elif __freebsd
892 /*
893 * Of course, the freebsd sendfile is a dire hack with no thoughts
894 * wasted on making it similar to other I/O functions.
895 */
896 {
897 off_t sbytes;
898 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
899
900 if (res < 0 && sbytes)
901 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
902 res = sbytes;
903 }
904
905# elif __hpux
906 res = sendfile (ofd, ifd, offset, count, 0, 0);
907
908# elif __solaris
909 {
910 struct sendfilevec vec;
911 size_t sbytes;
912
913 vec.sfv_fd = ifd;
914 vec.sfv_flag = 0;
915 vec.sfv_off = offset;
916 vec.sfv_len = count;
917
918 res = sendfilev (ofd, &vec, 1, &sbytes);
919
920 if (res < 0 && sbytes)
921 res = sbytes;
922 }
923
924# endif
925#else
926 res = -1;
927 errno = ENOSYS;
928#endif
929
930 if (res < 0
931 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
932#if __solaris
933 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
934#endif
935 )
936 )
937 {
938 /* emulate sendfile. this is a major pain in the ass */
939 dBUF;
940
941 res = 0;
942
943 while (count)
944 {
945 ssize_t cnt;
946
947 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
948
949 if (cnt <= 0)
950 {
951 if (cnt && !res) res = -1;
952 break;
953 }
954
955 cnt = write (ofd, aio_buf, cnt);
956
957 if (cnt <= 0)
958 {
959 if (cnt && !res) res = -1;
960 break;
961 }
962
963 offset += cnt;
964 res += cnt;
965 count -= cnt;
966 }
967 }
968
969 return res;
970}
971
972/* read a full directory */
973static void scandir_ (aio_req req, worker *self)
974{
975 DIR *dirp;
976 union
977 {
978 struct dirent d;
979 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
980 } *u;
981 struct dirent *entp;
982 char *name, *names;
983 int memlen = 4096;
984 int memofs = 0;
985 int res = 0;
986 int errorno;
987
988 LOCK (wrklock);
989 self->dirp = dirp = opendir (req->dataptr);
990 self->dbuf = u = malloc (sizeof (*u));
991 req->data2ptr = names = malloc (memlen);
992 UNLOCK (wrklock);
993
994 if (dirp && u && names)
995 for (;;)
996 {
997 errno = 0;
998 readdir_r (dirp, &u->d, &entp);
999
1000 if (!entp)
1001 break;
1002
1003 name = entp->d_name;
1004
1005 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1006 {
1007 int len = strlen (name) + 1;
1008
1009 res++;
1010
1011 while (memofs + len > memlen)
1012 {
1013 memlen *= 2;
1014 LOCK (wrklock);
1015 req->data2ptr = names = realloc (names, memlen);
1016 UNLOCK (wrklock);
1017
1018 if (!names)
1019 break;
1020 }
1021
1022 memcpy (names + memofs, name, len);
1023 memofs += len;
1024 }
1025 }
1026
1027 if (errno)
1028 res = -1;
1029
1030 req->result = res;
1031} 1005}
1032 1006
1033/*****************************************************************************/ 1007/*****************************************************************************/
1034 1008
1035static void *aio_proc (void *thr_arg) 1009XS(boot_IO__AIO) ecb_cold;
1036{
1037 aio_req req;
1038 struct timespec ts;
1039 worker *self = (worker *)thr_arg;
1040 1010
1041 /* try to distribute timeouts somewhat evenly */
1042 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1043 * (1000000000UL / 1024UL);
1044
1045 for (;;)
1046 {
1047 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1048
1049 LOCK (reqlock);
1050
1051 for (;;)
1052 {
1053 self->req = req = reqq_shift (&req_queue);
1054
1055 if (req)
1056 break;
1057
1058 ++idle;
1059
1060 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1061 == ETIMEDOUT)
1062 {
1063 if (idle > max_idle)
1064 {
1065 --idle;
1066 UNLOCK (reqlock);
1067 LOCK (wrklock);
1068 --started;
1069 UNLOCK (wrklock);
1070 goto quit;
1071 }
1072
1073 /* we are allowed to idle, so do so without any timeout */
1074 pthread_cond_wait (&reqwait, &reqlock);
1075 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1076 }
1077
1078 --idle;
1079 }
1080
1081 --nready;
1082
1083 UNLOCK (reqlock);
1084
1085 errno = 0; /* strictly unnecessary */
1086
1087 if (!(req->flags & FLAG_CANCELLED))
1088 switch (req->type)
1089 {
1090 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1091 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1092
1093 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1094 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1095
1096 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1097 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1098 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1099
1100 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1101 case REQ_CLOSE: req->result = close (req->fd); break;
1102 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1103 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1104 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1105 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1106 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1107 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1108
1109 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1110 case REQ_FSYNC: req->result = fsync (req->fd); break;
1111 case REQ_READDIR: scandir_ (req, self); break;
1112
1113 case REQ_BUSY:
1114 {
1115 struct timeval tv;
1116
1117 tv.tv_sec = req->fd;
1118 tv.tv_usec = req->fd2;
1119
1120 req->result = select (0, 0, 0, 0, &tv);
1121 }
1122
1123 case REQ_GROUP:
1124 case REQ_NOP:
1125 break;
1126
1127 case REQ_QUIT:
1128 goto quit;
1129
1130 default:
1131 req->result = ENOSYS;
1132 break;
1133 }
1134
1135 req->errorno = errno;
1136
1137 LOCK (reslock);
1138
1139 ++npending;
1140
1141 if (!reqq_push (&res_queue, req))
1142 /* write a dummy byte to the pipe so fh becomes ready */
1143 write (respipe [1], &respipe, 1);
1144
1145 self->req = 0;
1146 worker_clear (self);
1147
1148 UNLOCK (reslock);
1149 }
1150
1151quit:
1152 LOCK (wrklock);
1153 worker_free (self);
1154 UNLOCK (wrklock);
1155
1156 return 0;
1157}
1158
1159/*****************************************************************************/
1160
1161static void atfork_prepare (void)
1162{
1163 LOCK (wrklock);
1164 LOCK (reqlock);
1165 LOCK (reslock);
1166#if !HAVE_PREADWRITE
1167 LOCK (preadwritelock);
1168#endif
1169#if !HAVE_READDIR_R
1170 LOCK (readdirlock);
1171#endif
1172}
1173
1174static void atfork_parent (void)
1175{
1176#if !HAVE_READDIR_R
1177 UNLOCK (readdirlock);
1178#endif
1179#if !HAVE_PREADWRITE
1180 UNLOCK (preadwritelock);
1181#endif
1182 UNLOCK (reslock);
1183 UNLOCK (reqlock);
1184 UNLOCK (wrklock);
1185}
1186
1187static void atfork_child (void)
1188{
1189 aio_req prv;
1190
1191 while (prv = reqq_shift (&req_queue))
1192 req_free (prv);
1193
1194 while (prv = reqq_shift (&res_queue))
1195 req_free (prv);
1196
1197 while (wrk_first.next != &wrk_first)
1198 {
1199 worker *wrk = wrk_first.next;
1200
1201 if (wrk->req)
1202 req_free (wrk->req);
1203
1204 worker_clear (wrk);
1205 worker_free (wrk);
1206 }
1207
1208 started = 0;
1209 idle = 0;
1210 nreqs = 0;
1211 nready = 0;
1212 npending = 0;
1213
1214 close (respipe [0]);
1215 close (respipe [1]);
1216 create_pipe ();
1217
1218 atfork_parent ();
1219}
1220
1221#define dREQ \
1222 aio_req req; \
1223 int req_pri = next_pri; \
1224 next_pri = DEFAULT_PRI + PRI_BIAS; \
1225 \
1226 if (SvOK (callback) && !SvROK (callback)) \
1227 croak ("callback must be undef or of reference type"); \
1228 \
1229 Newz (0, req, 1, aio_cb); \
1230 if (!req) \
1231 croak ("out of memory during aio_req allocation"); \
1232 \
1233 req->callback = newSVsv (callback); \
1234 req->pri = req_pri
1235
1236#define REQ_SEND \
1237 req_send (req); \
1238 \
1239 if (GIMME_V != G_VOID) \
1240 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1241
1242MODULE = IO::AIO PACKAGE = IO::AIO 1011MODULE = IO::AIO PACKAGE = IO::AIO
1243 1012
1244PROTOTYPES: ENABLE 1013PROTOTYPES: ENABLE
1245 1014
1246BOOT: 1015BOOT:
1247{ 1016{
1017 static const struct {
1018 const char *name;
1019 IV iv;
1020 } *civ, const_iv[] = {
1021# define const_niv(name, value) { # name, (IV) value },
1022# define const_iv(name) { # name, (IV) name },
1023# define const_eio(name) { # name, (IV) EIO_ ## name },
1024
1025 /* you have to re-run ./gendef0 after adding/removing any constants here */
1026 /* the first block can be undef if missing */
1027 const_iv (ENOSYS)
1028 const_iv (EXDEV)
1029 const_iv (EBADR)
1030
1031 /* for lseek */
1032 const_iv (SEEK_DATA)
1033 const_iv (SEEK_HOLE)
1034
1035 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1036 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1037 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1038 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1039 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1040 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1041
1042 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1043 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1044 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1045 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1046 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1047
1048 /* the second block will be 0 when missing */
1049 const_iv (O_ACCMODE)
1050
1051 const_iv (O_RDONLY)
1052 const_iv (O_WRONLY)
1053 const_iv (O_RDWR)
1054 const_iv (O_CREAT)
1055 const_iv (O_TRUNC)
1056 const_iv (O_EXCL)
1057 const_iv (O_APPEND)
1058
1059 const_iv (O_ASYNC)
1060 const_iv (O_DIRECT)
1061 const_iv (O_NOATIME)
1062
1063 const_iv (O_CLOEXEC)
1064 const_iv (O_NOCTTY)
1065 const_iv (O_NOFOLLOW)
1066 const_iv (O_NONBLOCK)
1067 const_iv (O_EXEC)
1068 const_iv (O_SEARCH)
1069 const_iv (O_DIRECTORY)
1070 const_iv (O_DSYNC)
1071 const_iv (O_RSYNC)
1072 const_iv (O_SYNC)
1073 const_iv (O_PATH)
1074 const_iv (O_TMPFILE)
1075 const_iv (O_TTY_INIT)
1076
1077 const_iv (S_IFIFO)
1078 const_iv (S_IFCHR)
1079 const_iv (S_IFBLK)
1080 const_iv (S_IFLNK)
1081 const_iv (S_IFREG)
1082 const_iv (S_IFDIR)
1083 const_iv (S_IFWHT)
1084 const_iv (S_IFSOCK)
1085 const_iv (S_IFMT)
1086
1087 const_iv (ST_RDONLY)
1088 const_iv (ST_NOSUID)
1089 const_iv (ST_NODEV)
1090 const_iv (ST_NOEXEC)
1091 const_iv (ST_SYNCHRONOUS)
1092 const_iv (ST_MANDLOCK)
1093 const_iv (ST_WRITE)
1094 const_iv (ST_APPEND)
1095 const_iv (ST_IMMUTABLE)
1096 const_iv (ST_NOATIME)
1097 const_iv (ST_NODIRATIME)
1098 const_iv (ST_RELATIME)
1099
1100 const_iv (PROT_NONE)
1101 const_iv (PROT_EXEC)
1102 const_iv (PROT_READ)
1103 const_iv (PROT_WRITE)
1104
1105 const_iv (MAP_PRIVATE)
1106 const_iv (MAP_SHARED)
1107 const_iv (MAP_FIXED)
1108 const_iv (MAP_ANONYMOUS)
1109
1110 /* linuxish */
1111 const_iv (MAP_LOCKED)
1112 const_iv (MAP_NORESERVE)
1113 const_iv (MAP_POPULATE)
1114 const_iv (MAP_NONBLOCK)
1115 const_iv (MAP_GROWSDOWN)
1116 const_iv (MAP_32BIT)
1117 const_iv (MAP_HUGETLB)
1118 const_iv (MAP_STACK)
1119
1120 const_iv (MREMAP_MAYMOVE)
1121 const_iv (MREMAP_FIXED)
1122
1123 const_iv (F_DUPFD_CLOEXEC)
1124
1125 const_iv (F_OFD_GETLK)
1126 const_iv (F_OFD_SETLK)
1127 const_iv (F_OFD_GETLKW)
1128
1129 const_iv (FIFREEZE)
1130 const_iv (FITHAW)
1131 const_iv (FITRIM)
1132 const_iv (FICLONE)
1133 const_iv (FICLONERANGE)
1134 const_iv (FIDEDUPERANGE)
1135
1136 const_iv (FS_IOC_GETFLAGS)
1137 const_iv (FS_IOC_SETFLAGS)
1138 const_iv (FS_IOC_GETVERSION)
1139 const_iv (FS_IOC_SETVERSION)
1140 const_iv (FS_IOC_FIEMAP)
1141 const_iv (FS_IOC_FSGETXATTR)
1142 const_iv (FS_IOC_FSSETXATTR)
1143 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1144 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1145 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1146
1147 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1148
1149 const_iv (FS_SECRM_FL)
1150 const_iv (FS_UNRM_FL)
1151 const_iv (FS_COMPR_FL)
1152 const_iv (FS_SYNC_FL)
1153 const_iv (FS_IMMUTABLE_FL)
1154 const_iv (FS_APPEND_FL)
1155 const_iv (FS_NODUMP_FL)
1156 const_iv (FS_NOATIME_FL)
1157 const_iv (FS_DIRTY_FL)
1158 const_iv (FS_COMPRBLK_FL)
1159 const_iv (FS_NOCOMP_FL)
1160 const_iv (FS_ENCRYPT_FL)
1161 const_iv (FS_BTREE_FL)
1162 const_iv (FS_INDEX_FL)
1163 const_iv (FS_JOURNAL_DATA_FL)
1164 const_iv (FS_NOTAIL_FL)
1165 const_iv (FS_DIRSYNC_FL)
1166 const_iv (FS_TOPDIR_FL)
1167 const_iv (FS_FL_USER_MODIFIABLE)
1168
1169 const_iv (FS_XFLAG_REALTIME)
1170 const_iv (FS_XFLAG_PREALLOC)
1171 const_iv (FS_XFLAG_IMMUTABLE)
1172 const_iv (FS_XFLAG_APPEND)
1173 const_iv (FS_XFLAG_SYNC)
1174 const_iv (FS_XFLAG_NOATIME)
1175 const_iv (FS_XFLAG_NODUMP)
1176 const_iv (FS_XFLAG_RTINHERIT)
1177 const_iv (FS_XFLAG_PROJINHERIT)
1178 const_iv (FS_XFLAG_NOSYMLINKS)
1179 const_iv (FS_XFLAG_EXTSIZE)
1180 const_iv (FS_XFLAG_EXTSZINHERIT)
1181 const_iv (FS_XFLAG_NODEFRAG)
1182 const_iv (FS_XFLAG_FILESTREAM)
1183 const_iv (FS_XFLAG_DAX)
1184 const_iv (FS_XFLAG_HASATTR)
1185
1186 const_iv (FIEMAP_FLAG_SYNC)
1187 const_iv (FIEMAP_FLAG_XATTR)
1188 const_iv (FIEMAP_FLAGS_COMPAT)
1189 const_iv (FIEMAP_EXTENT_LAST)
1190 const_iv (FIEMAP_EXTENT_UNKNOWN)
1191 const_iv (FIEMAP_EXTENT_DELALLOC)
1192 const_iv (FIEMAP_EXTENT_ENCODED)
1193 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1194 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1195 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1196 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1197 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1198 const_iv (FIEMAP_EXTENT_MERGED)
1199 const_iv (FIEMAP_EXTENT_SHARED)
1200
1201 const_iv (SPLICE_F_MOVE)
1202 const_iv (SPLICE_F_NONBLOCK)
1203 const_iv (SPLICE_F_MORE)
1204 const_iv (SPLICE_F_GIFT)
1205
1206 const_iv (EFD_CLOEXEC)
1207 const_iv (EFD_NONBLOCK)
1208 const_iv (EFD_SEMAPHORE)
1209
1210 const_iv (CLOCK_REALTIME)
1211 const_iv (CLOCK_MONOTONIC)
1212 const_iv (CLOCK_BOOTTIME)
1213 const_iv (CLOCK_REALTIME_ALARM)
1214 const_iv (CLOCK_BOOTTIME_ALARM)
1215
1216 const_iv (TFD_NONBLOCK)
1217 const_iv (TFD_CLOEXEC)
1218
1219 const_iv (TFD_TIMER_ABSTIME)
1220 const_iv (TFD_TIMER_CANCEL_ON_SET)
1221
1222 /* these are libeio constants, and are independent of gendef0 */
1223 const_eio (SEEK_SET)
1224 const_eio (SEEK_CUR)
1225 const_eio (SEEK_END)
1226
1227 const_eio (MCL_FUTURE)
1228 const_eio (MCL_CURRENT)
1229
1230 const_eio (MS_ASYNC)
1231 const_eio (MS_INVALIDATE)
1232 const_eio (MS_SYNC)
1233
1234 const_eio (MT_MODIFY)
1235
1236 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1237 const_eio (SYNC_FILE_RANGE_WRITE)
1238 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1239
1240 const_eio (FALLOC_FL_KEEP_SIZE)
1241 const_eio (FALLOC_FL_PUNCH_HOLE)
1242 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1243 const_eio (FALLOC_FL_ZERO_RANGE)
1244 const_eio (FALLOC_FL_INSERT_RANGE)
1245 const_eio (FALLOC_FL_UNSHARE_RANGE)
1246
1247 const_eio (RENAME_NOREPLACE)
1248 const_eio (RENAME_EXCHANGE)
1249 const_eio (RENAME_WHITEOUT)
1250
1251 const_eio (READDIR_DENTS)
1252 const_eio (READDIR_DIRS_FIRST)
1253 const_eio (READDIR_STAT_ORDER)
1254 const_eio (READDIR_FOUND_UNKNOWN)
1255
1256 const_eio (DT_UNKNOWN)
1257 const_eio (DT_FIFO)
1258 const_eio (DT_CHR)
1259 const_eio (DT_DIR)
1260 const_eio (DT_BLK)
1261 const_eio (DT_REG)
1262 const_eio (DT_LNK)
1263 const_eio (DT_SOCK)
1264 const_eio (DT_WHT)
1265 };
1266
1248 HV *stash = gv_stashpv ("IO::AIO", 1); 1267 aio_stash = gv_stashpv ("IO::AIO" , 1);
1268 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1269 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1270 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1249 1271
1250 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1272 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1251 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1273 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1252 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1253 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1254 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1255 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1256 1274
1257 create_pipe (); 1275 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1258 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1259}
1260 1276
1277 reinit ();
1278}
1279
1261void 1280void
1281reinit ()
1282 PROTOTYPE:
1283
1284void
1262max_poll_reqs (int nreqs) 1285max_poll_reqs (unsigned int nreqs)
1263 PROTOTYPE: $ 1286 PROTOTYPE: $
1264 CODE: 1287 CODE:
1265 max_poll_reqs = nreqs; 1288 eio_set_max_poll_reqs (nreqs);
1266 1289
1267void 1290void
1268max_poll_time (double nseconds) 1291max_poll_time (double nseconds)
1269 PROTOTYPE: $ 1292 PROTOTYPE: $
1270 CODE: 1293 CODE:
1271 max_poll_time = nseconds * AIO_TICKS; 1294 eio_set_max_poll_time (nseconds);
1272 1295
1273void 1296void
1274min_parallel (int nthreads) 1297min_parallel (unsigned int nthreads)
1275 PROTOTYPE: $
1276
1277void
1278max_parallel (int nthreads)
1279 PROTOTYPE: $
1280
1281void
1282max_idle (int nthreads)
1283 PROTOTYPE: $ 1298 PROTOTYPE: $
1284 CODE: 1299 CODE:
1285 set_max_idle (nthreads); 1300 eio_set_min_parallel (nthreads);
1286 1301
1287int 1302void
1288max_outstanding (int maxreqs) 1303max_parallel (unsigned int nthreads)
1289 PROTOTYPE: $ 1304 PROTOTYPE: $
1290 CODE: 1305 CODE:
1291 RETVAL = max_outstanding; 1306 eio_set_max_parallel (nthreads);
1307
1308void
1309max_idle (unsigned int nthreads)
1310 PROTOTYPE: $
1311 CODE:
1312 eio_set_max_idle (nthreads);
1313
1314void
1315idle_timeout (unsigned int seconds)
1316 PROTOTYPE: $
1317 CODE:
1318 eio_set_idle_timeout (seconds);
1319
1320void
1321max_outstanding (unsigned int maxreqs)
1322 PROTOTYPE: $
1323 CODE:
1292 max_outstanding = maxreqs; 1324 max_outstanding = maxreqs;
1293 OUTPUT:
1294 RETVAL
1295 1325
1296void 1326void
1297aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1327aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1298 SV * pathname
1299 int flags
1300 int mode
1301 SV * callback
1302 PROTOTYPE: $$$;$
1303 PPCODE: 1328 PPCODE:
1304{ 1329{
1305 dREQ; 1330 dREQ;
1306 1331
1307 req->type = REQ_OPEN; 1332 req->type = EIO_WD_OPEN;
1308 req->data = newSVsv (pathname); 1333 req_set_path1 (req, pathname);
1309 req->dataptr = SvPVbyte_nolen (req->data);
1310 req->fd = flags;
1311 req->mode = mode;
1312 1334
1313 REQ_SEND; 1335 REQ_SEND;
1314} 1336}
1315 1337
1316void 1338void
1339aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1340 PPCODE:
1341{
1342 dREQ;
1343
1344 req->type = EIO_OPEN;
1345 req_set_path1 (req, pathname);
1346 req->int1 = flags;
1347 req->int2 = mode;
1348
1349 REQ_SEND;
1350}
1351
1352void
1317aio_close (fh,callback=&PL_sv_undef) 1353aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1318 SV * fh
1319 SV * callback
1320 PROTOTYPE: $;$
1321 ALIAS: 1354 ALIAS:
1322 aio_close = REQ_CLOSE
1323 aio_fsync = REQ_FSYNC 1355 aio_fsync = EIO_FSYNC
1324 aio_fdatasync = REQ_FDATASYNC 1356 aio_fdatasync = EIO_FDATASYNC
1357 aio_syncfs = EIO_SYNCFS
1325 PPCODE: 1358 PPCODE:
1326{ 1359{
1360 int fd = s_fileno_croak (fh, 0);
1327 dREQ; 1361 dREQ;
1328 1362
1329 req->type = ix; 1363 req->type = ix;
1330 req->fh = newSVsv (fh); 1364 req->sv1 = newSVsv (fh);
1331 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1365 req->int1 = fd;
1332 1366
1333 REQ_SEND (req); 1367 REQ_SEND;
1334} 1368}
1335 1369
1336void 1370void
1371aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1372 PPCODE:
1373{
1374 int fd = s_fileno_croak (fh, 0);
1375 dREQ;
1376
1377 req->type = EIO_SYNC_FILE_RANGE;
1378 req->sv1 = newSVsv (fh);
1379 req->int1 = fd;
1380 req->offs = offset;
1381 req->size = nbytes;
1382 req->int2 = flags;
1383
1384 REQ_SEND;
1385}
1386
1387void
1388aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1389 PPCODE:
1390{
1391 int fd = s_fileno_croak (fh, 0);
1392 dREQ;
1393
1394 req->type = EIO_FALLOCATE;
1395 req->sv1 = newSVsv (fh);
1396 req->int1 = fd;
1397 req->int2 = mode;
1398 req->offs = offset;
1399 req->size = len;
1400
1401 REQ_SEND;
1402}
1403
1404void
1405aio_close (SV *fh, SV *callback = &PL_sv_undef)
1406 PPCODE:
1407{
1408 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1409 int fd = s_fileno_croak (fh, 0);
1410 dREQ;
1411
1412 if (expect_false (close_fd < 0))
1413 {
1414 int pipefd [2];
1415
1416 if (
1417#ifdef _WIN32
1418 _pipe (pipefd, 1, _O_BINARY) < 0
1419#else
1420 pipe (pipefd) < 0
1421 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1422#endif
1423 || close (pipefd [1]) < 0
1424 )
1425 abort (); /*D*/
1426
1427 close_fd = pipefd [0];
1428 }
1429
1430 req->type = EIO_DUP2;
1431 req->int1 = close_fd;
1432 req->sv2 = newSVsv (fh);
1433 req->int2 = fd;
1434
1435 REQ_SEND;
1436}
1437
1438void
1439aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1440 PPCODE:
1441{
1442 int fd = s_fileno_croak (fh, 0);
1443 dREQ;
1444
1445 req->type = EIO_SEEK;
1446 req->sv1 = newSVsv (fh);
1447 req->int1 = fd;
1448 req->offs = SvVAL64 (offset);
1449 req->int2 = whence;
1450
1451 REQ_SEND;
1452}
1453
1454void
1337aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1455aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1338 SV * fh
1339 UV offset
1340 UV length
1341 SV * data
1342 UV dataoffset
1343 SV * callback
1344 ALIAS: 1456 ALIAS:
1345 aio_read = REQ_READ 1457 aio_read = EIO_READ
1346 aio_write = REQ_WRITE 1458 aio_write = EIO_WRITE
1347 PROTOTYPE: $$$$$;$
1348 PPCODE: 1459 PPCODE:
1349{ 1460{
1350 aio_req req;
1351 STRLEN svlen; 1461 STRLEN svlen;
1462 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1352 char *svptr = SvPVbyte (data, svlen); 1463 char *svptr = SvPVbyte (data, svlen);
1353 1464 UV len = SvUV (length);
1354 SvUPGRADE (data, SVt_PV);
1355 SvPOK_on (data);
1356 1465
1357 if (dataoffset < 0) 1466 if (dataoffset < 0)
1358 dataoffset += svlen; 1467 dataoffset += svlen;
1359 1468
1360 if (dataoffset < 0 || dataoffset > svlen) 1469 if (dataoffset < 0 || dataoffset > svlen)
1361 croak ("data offset outside of string"); 1470 croak ("dataoffset outside of data scalar");
1362 1471
1363 if (ix == REQ_WRITE) 1472 if (ix == EIO_WRITE)
1364 { 1473 {
1365 /* write: check length and adjust. */ 1474 /* write: check length and adjust. */
1366 if (length < 0 || length + dataoffset > svlen) 1475 if (!SvOK (length) || len + dataoffset > svlen)
1367 length = svlen - dataoffset; 1476 len = svlen - dataoffset;
1368 } 1477 }
1369 else 1478 else
1370 { 1479 {
1371 /* read: grow scalar as necessary */ 1480 /* read: check type and grow scalar as necessary */
1481 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1372 svptr = SvGROW (data, length + dataoffset); 1482 svptr = sv_grow (data, len + dataoffset + 1);
1483 else if (SvCUR (data) < len + dataoffset)
1484 croak ("length + dataoffset outside of scalar, and cannot grow");
1373 } 1485 }
1374
1375 if (length < 0)
1376 croak ("length must not be negative");
1377 1486
1378 { 1487 {
1379 dREQ; 1488 dREQ;
1380 1489
1381 req->type = ix; 1490 req->type = ix;
1382 req->fh = newSVsv (fh); 1491 req->sv1 = newSVsv (fh);
1383 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1492 req->int1 = fd;
1384 : IoOFP (sv_2io (fh))); 1493 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1385 req->offset = offset; 1494 req->size = len;
1386 req->length = length;
1387 req->data = SvREFCNT_inc (data); 1495 req->sv2 = SvREFCNT_inc (data);
1388 req->dataptr = (char *)svptr + dataoffset; 1496 req->ptr2 = (char *)svptr + dataoffset;
1497 req->stroffset = dataoffset;
1389 1498
1390 if (!SvREADONLY (data)) 1499 if (!SvREADONLY (data))
1391 { 1500 {
1392 SvREADONLY_on (data); 1501 SvREADONLY_on (data);
1393 req->data2ptr = (void *)data; 1502 req->flags |= FLAG_SV2_RO_OFF;
1394 } 1503 }
1395 1504
1396 REQ_SEND; 1505 REQ_SEND;
1397 } 1506 }
1398} 1507}
1399 1508
1400void 1509void
1401aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1510aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1402 SV * out_fh 1511 ALIAS:
1403 SV * in_fh 1512 aio_ioctl = EIO_IOCTL
1404 UV in_offset 1513 aio_fcntl = EIO_FCNTL
1405 UV length
1406 SV * callback
1407 PROTOTYPE: $$$$;$
1408 PPCODE: 1514 PPCODE:
1409{ 1515{
1410 dREQ; 1516 int fd = s_fileno_croak (fh, 0);
1517 char *svptr;
1411 1518
1412 req->type = REQ_SENDFILE; 1519 if (SvPOK (arg) || !SvNIOK (arg))
1413 req->fh = newSVsv (out_fh);
1414 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1415 req->fh2 = newSVsv (in_fh);
1416 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1417 req->offset = in_offset;
1418 req->length = length;
1419
1420 REQ_SEND;
1421}
1422
1423void
1424aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1425 SV * fh
1426 UV offset
1427 IV length
1428 SV * callback
1429 PROTOTYPE: $$$;$
1430 PPCODE:
1431{
1432 dREQ;
1433
1434 req->type = REQ_READAHEAD;
1435 req->fh = newSVsv (fh);
1436 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1437 req->offset = offset;
1438 req->length = length;
1439
1440 REQ_SEND;
1441}
1442
1443void
1444aio_stat (fh_or_path,callback=&PL_sv_undef)
1445 SV * fh_or_path
1446 SV * callback
1447 ALIAS:
1448 aio_stat = REQ_STAT
1449 aio_lstat = REQ_LSTAT
1450 PPCODE:
1451{
1452 dREQ;
1453
1454 New (0, req->statdata, 1, Stat_t);
1455 if (!req->statdata)
1456 { 1520 {
1457 req_free (req); 1521 STRLEN svlen;
1458 croak ("out of memory during aio_req->statdata allocation"); 1522 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1459 } 1523#ifdef IOCPARM_LEN
1524 STRLEN need = IOCPARM_LEN (request);
1525#else
1526 STRLEN need = 256;
1527#endif
1460 1528
1461 if (SvPOK (fh_or_path)) 1529 if (svlen < need)
1462 { 1530 svptr = SvGROW (arg, need);
1463 req->type = ix;
1464 req->data = newSVsv (fh_or_path);
1465 req->dataptr = SvPVbyte_nolen (req->data);
1466 } 1531 }
1467 else 1532 else
1533 svptr = (char *)SvIV (arg);
1534
1468 { 1535 {
1536 dREQ;
1537
1469 req->type = REQ_FSTAT; 1538 req->type = ix;
1470 req->fh = newSVsv (fh_or_path); 1539 req->sv1 = newSVsv (fh);
1471 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1540 req->int1 = fd;
1541 req->int2 = (long)request;
1542 req->sv2 = SvREFCNT_inc (arg);
1543 req->ptr2 = svptr;
1544
1545 REQ_SEND;
1472 } 1546 }
1547}
1548
1549void
1550aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1551 ALIAS:
1552 aio_readlink = EIO_READLINK
1553 aio_realpath = EIO_REALPATH
1554 PPCODE:
1555{
1556 dREQ;
1557
1558 req->type = ix;
1559 req_set_path1 (req, pathname);
1473 1560
1474 REQ_SEND; 1561 REQ_SEND;
1475} 1562}
1476 1563
1477void 1564void
1478aio_unlink (pathname,callback=&PL_sv_undef) 1565aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1479 SV * pathname 1566 PPCODE:
1480 SV * callback 1567{
1568 int ifd = s_fileno_croak (in_fh , 0);
1569 int ofd = s_fileno_croak (out_fh, 1);
1570 dREQ;
1571
1572 req->type = EIO_SENDFILE;
1573 req->sv1 = newSVsv (out_fh);
1574 req->int1 = ofd;
1575 req->sv2 = newSVsv (in_fh);
1576 req->int2 = ifd;
1577 req->offs = in_offset;
1578 req->size = length;
1579
1580 REQ_SEND;
1581}
1582
1583void
1584aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1585 PPCODE:
1586{
1587 int fd = s_fileno_croak (fh, 0);
1588 dREQ;
1589
1590 req->type = EIO_READAHEAD;
1591 req->sv1 = newSVsv (fh);
1592 req->int1 = fd;
1593 req->offs = offset;
1594 req->size = length;
1595
1596 REQ_SEND;
1597}
1598
1599void
1600aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1481 ALIAS: 1601 ALIAS:
1602 aio_stat = EIO_STAT
1603 aio_lstat = EIO_LSTAT
1604 aio_statvfs = EIO_STATVFS
1605 PPCODE:
1606{
1607 dREQ;
1608
1609 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1610
1611 REQ_SEND;
1612}
1613
1614UV
1615major (UV dev)
1616 ALIAS:
1617 minor = 1
1618 CODE:
1619 RETVAL = ix ? minor (dev) : major (dev);
1620 OUTPUT:
1621 RETVAL
1622
1623UV
1624makedev (UV maj, UV min)
1625 CODE:
1626 RETVAL = makedev (maj, min);
1627 OUTPUT:
1628 RETVAL
1629
1630void
1631aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1632 PPCODE:
1633{
1634 dREQ;
1635
1636 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1637 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1638 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1639
1640 REQ_SEND;
1641}
1642
1643void
1644aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1645 PPCODE:
1646{
1647 dREQ;
1648
1649 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1650 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1651
1652 REQ_SEND;
1653}
1654
1655void
1656aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1657 PPCODE:
1658{
1659 dREQ;
1660
1661 req->int2 = mode;
1662 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1663
1664 REQ_SEND;
1665}
1666
1667void
1668aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1669 PPCODE:
1670{
1671 dREQ;
1672
1673 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1674 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1675 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1676
1677 REQ_SEND;
1678}
1679
1680void
1681aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1682 PPCODE:
1683{
1684 dREQ;
1685
1686 req->type = EIO_READDIR;
1687 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1688
1689 if (flags & EIO_READDIR_DENTS)
1690 req->int1 |= EIO_READDIR_CUSTOM2;
1691
1692 req_set_path1 (req, pathname);
1693
1694 REQ_SEND;
1695}
1696
1697void
1698aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1699 PPCODE:
1700{
1701 dREQ;
1702
1703 req->type = EIO_MKDIR;
1704 req->int2 = mode;
1705 req_set_path1 (req, pathname);
1706
1707 REQ_SEND;
1708}
1709
1710void
1711aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1712 ALIAS:
1482 aio_unlink = REQ_UNLINK 1713 aio_unlink = EIO_UNLINK
1483 aio_rmdir = REQ_RMDIR 1714 aio_rmdir = EIO_RMDIR
1484 aio_readdir = REQ_READDIR 1715 aio_readdir = EIO_READDIR
1485 PPCODE: 1716 PPCODE:
1486{ 1717{
1487 dREQ; 1718 dREQ;
1488 1719
1489 req->type = ix; 1720 req->type = ix;
1490 req->data = newSVsv (pathname); 1721 req_set_path1 (req, pathname);
1491 req->dataptr = SvPVbyte_nolen (req->data); 1722
1492
1493 REQ_SEND; 1723 REQ_SEND;
1494} 1724}
1495 1725
1496void 1726void
1497aio_link (oldpath,newpath,callback=&PL_sv_undef) 1727aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1498 SV * oldpath
1499 SV * newpath
1500 SV * callback
1501 ALIAS: 1728 ALIAS:
1502 aio_link = REQ_LINK 1729 aio_link = EIO_LINK
1503 aio_symlink = REQ_SYMLINK 1730 aio_symlink = EIO_SYMLINK
1504 aio_rename = REQ_RENAME 1731 aio_rename = EIO_RENAME
1505 PPCODE: 1732 PPCODE:
1506{ 1733{
1734 eio_wd wd2 = 0;
1507 dREQ; 1735 dREQ;
1508 1736
1509 req->type = ix; 1737 req->type = ix;
1510 req->fh = newSVsv (oldpath); 1738 req_set_path1 (req, oldpath);
1511 req->data2ptr = SvPVbyte_nolen (req->fh); 1739 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1512 req->data = newSVsv (newpath); 1740 req->int3 = (long)wd2;
1513 req->dataptr = SvPVbyte_nolen (req->data);
1514 1741
1515 REQ_SEND; 1742 REQ_SEND;
1516} 1743}
1517 1744
1518void 1745void
1519aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1746aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1520 SV * pathname
1521 SV * callback
1522 UV mode
1523 UV dev
1524 PPCODE: 1747 PPCODE:
1525{ 1748{
1749 eio_wd wd2 = 0;
1526 dREQ; 1750 dREQ;
1527 1751
1528 req->type = REQ_MKNOD; 1752 req->type = EIO_RENAME;
1529 req->data = newSVsv (pathname); 1753 req_set_path1 (req, oldpath);
1530 req->dataptr = SvPVbyte_nolen (req->data); 1754 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1531 req->mode = (mode_t)mode; 1755 req->int2 = flags;
1532 req->offset = dev; 1756 req->int3 = (long)wd2;
1533 1757
1534 REQ_SEND; 1758 REQ_SEND;
1535} 1759}
1536 1760
1537void 1761void
1538aio_busy (delay,callback=&PL_sv_undef) 1762aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1539 double delay
1540 SV * callback
1541 PPCODE: 1763 PPCODE:
1542{ 1764{
1543 dREQ; 1765 dREQ;
1544 1766
1545 req->type = REQ_BUSY; 1767 req->type = EIO_MKNOD;
1546 req->fd = delay < 0. ? 0 : delay; 1768 req->int2 = (mode_t)mode;
1547 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1769 req->offs = dev;
1548 1770 req_set_path1 (req, pathname);
1771
1549 REQ_SEND; 1772 REQ_SEND;
1550} 1773}
1551 1774
1552void 1775void
1553aio_group (callback=&PL_sv_undef) 1776aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1554 SV * callback 1777 ALIAS:
1555 PROTOTYPE: ;$ 1778 aio_mtouch = EIO_MTOUCH
1779 aio_msync = EIO_MSYNC
1556 PPCODE: 1780 PPCODE:
1557{ 1781{
1782 STRLEN svlen;
1783 char *svptr = SvPVbyte (data, svlen);
1784 UV len = SvUV (length);
1785
1786 if (flags < 0)
1787 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1788
1789 if (offset < 0)
1790 offset += svlen;
1791
1792 if (offset < 0 || offset > svlen)
1793 croak ("offset outside of scalar");
1794
1795 if (!SvOK (length) || len + offset > svlen)
1796 len = svlen - offset;
1797
1798 {
1799 dREQ;
1800
1801 req->type = ix;
1802 req->sv2 = SvREFCNT_inc (data);
1803 req->ptr2 = (char *)svptr + offset;
1804 req->size = len;
1805 req->int1 = flags;
1806
1807 REQ_SEND;
1808 }
1809}
1810
1811void
1812aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1813 PPCODE:
1814{
1815 STRLEN svlen;
1816 char *svptr = SvPVbyte (data, svlen);
1817 UV len = SvUV (length);
1818
1819 if (offset < 0)
1820 offset += svlen;
1821
1822 if (offset < 0 || offset > svlen)
1823 croak ("offset outside of scalar");
1824
1825 if (!SvOK (length) || len + offset > svlen)
1826 len = svlen - offset;
1827
1828 {
1829 dREQ;
1830
1831 req->type = EIO_MLOCK;
1832 req->sv2 = SvREFCNT_inc (data);
1833 req->ptr2 = (char *)svptr + offset;
1834 req->size = len;
1835
1836 REQ_SEND;
1837 }
1838}
1839
1840void
1841aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1842 PPCODE:
1843{
1844 dREQ;
1845
1846 req->type = EIO_MLOCKALL;
1847 req->int1 = flags;
1848
1849 REQ_SEND;
1850}
1851
1852void
1853aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1854 PPCODE:
1855{
1856 int fd = s_fileno_croak (fh, 0);
1558 dREQ; 1857 dREQ;
1559 1858
1560 req->type = REQ_GROUP; 1859 req->type = EIO_CUSTOM;
1561 req_send (req); 1860 req->sv1 = newSVsv (fh);
1861 req->int1 = fd;
1562 1862
1563 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1863 req->feed = fiemap;
1564} 1864#if HAVE_FIEMAP
1865 /* keep our fingers crossed that the next two types are 64 bit */
1866 req->offs = start;
1867 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1868 req->int2 = flags;
1869 req->int3 = SvOK (count) ? SvIV (count) : -1;
1870#endif
1565 1871
1872 REQ_SEND;
1873}
1874
1566void 1875void
1567aio_nop (callback=&PL_sv_undef) 1876aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1568 SV * callback 1877 PPCODE:
1878{
1879 char *svptr = 0;
1880
1881 sv_clear_foreign (data);
1882
1883 if (length) /* known length, directly read into scalar */
1884 {
1885 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1886 svptr = sv_grow (data, length + 1);
1887 else if (SvCUR (data) < length)
1888 croak ("length outside of scalar, and cannot grow");
1889 else
1890 svptr = SvPVbyte_nolen (data);
1891 }
1892
1893 {
1894 dREQ;
1895
1896 req->type = EIO_SLURP;
1897 req_set_path1 (req, pathname);
1898 req->offs = offset;
1899 req->size = length;
1900 req->sv2 = SvREFCNT_inc (data);
1901 req->ptr2 = svptr;
1902
1903 if (!SvREADONLY (data))
1904 {
1905 SvREADONLY_on (data);
1906 req->flags |= FLAG_SV2_RO_OFF;
1907 }
1908
1909 REQ_SEND;
1910 }
1911}
1912
1913void
1914aio_busy (double delay, SV *callback = &PL_sv_undef)
1569 PPCODE: 1915 PPCODE:
1570{ 1916{
1571 dREQ; 1917 dREQ;
1572 1918
1573 req->type = REQ_NOP; 1919 req->type = EIO_BUSY;
1920 req->nv1 = delay < 0. ? 0. : delay;
1574 1921
1575 REQ_SEND; 1922 REQ_SEND;
1576} 1923}
1577 1924
1925void
1926aio_group (SV *callback = &PL_sv_undef)
1927 PPCODE:
1928{
1929 dREQ;
1930
1931 req->type = EIO_GROUP;
1932
1933 PUTBACK;
1934 req_submit (req);
1935 SPAGAIN;
1936
1937 XPUSHs (req_sv (req, aio_grp_stash));
1938}
1939
1940void
1941aio_nop (SV *callback = &PL_sv_undef)
1942 ALIAS:
1943 aio_nop = EIO_NOP
1944 aio_sync = EIO_SYNC
1945 PPCODE:
1946{
1947 dREQ;
1948
1949 req->type = ix;
1950
1951 REQ_SEND;
1952}
1953
1578int 1954int
1579aioreq_pri (int pri = 0) 1955aioreq_pri (int pri = NO_INIT)
1580 PROTOTYPE: ;$
1581 CODE: 1956 CODE:
1582 RETVAL = next_pri - PRI_BIAS; 1957 RETVAL = next_pri;
1583 if (items > 0) 1958 if (items > 0)
1584 { 1959 {
1585 if (pri < PRI_MIN) pri = PRI_MIN; 1960 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1586 if (pri > PRI_MAX) pri = PRI_MAX; 1961 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1587 next_pri = pri + PRI_BIAS; 1962 next_pri = pri;
1588 } 1963 }
1589 OUTPUT: 1964 OUTPUT:
1590 RETVAL 1965 RETVAL
1591 1966
1592void 1967void
1593aioreq_nice (int nice = 0) 1968aioreq_nice (int nice = 0)
1594 CODE: 1969 CODE:
1595 nice = next_pri - nice; 1970 nice = next_pri - nice;
1596 if (nice < PRI_MIN) nice = PRI_MIN; 1971 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1597 if (nice > PRI_MAX) nice = PRI_MAX; 1972 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1598 next_pri = nice + PRI_BIAS; 1973 next_pri = nice;
1599 1974
1600void 1975void
1601flush () 1976flush ()
1602 PROTOTYPE:
1603 CODE: 1977 CODE:
1604 while (nreqs) 1978 while (eio_nreqs ())
1605 { 1979 {
1606 poll_wait (); 1980 poll_wait ();
1607 poll_cb (0); 1981 poll_cb ();
1608 } 1982 }
1609 1983
1610void 1984int
1611poll() 1985poll ()
1612 PROTOTYPE:
1613 CODE: 1986 CODE:
1614 if (nreqs)
1615 {
1616 poll_wait (); 1987 poll_wait ();
1617 poll_cb (0); 1988 RETVAL = poll_cb ();
1618 }
1619
1620int
1621poll_fileno()
1622 PROTOTYPE:
1623 CODE:
1624 RETVAL = respipe [0];
1625 OUTPUT: 1989 OUTPUT:
1626 RETVAL 1990 RETVAL
1627 1991
1628int 1992int
1993poll_fileno ()
1994 CODE:
1995 RETVAL = s_epipe_fd (&respipe);
1996 OUTPUT:
1997 RETVAL
1998
1999int
1629poll_cb(...) 2000poll_cb (...)
1630 PROTOTYPE: 2001 PROTOTYPE:
1631 CODE: 2002 CODE:
1632 RETVAL = poll_cb (); 2003 RETVAL = poll_cb ();
1633 OUTPUT: 2004 OUTPUT:
1634 RETVAL 2005 RETVAL
1635 2006
1636void 2007void
1637poll_wait() 2008poll_wait ()
1638 PROTOTYPE:
1639 CODE: 2009 CODE:
1640 if (nreqs)
1641 poll_wait (); 2010 poll_wait ();
1642 2011
1643int 2012int
1644nreqs() 2013nreqs ()
1645 PROTOTYPE:
1646 CODE: 2014 CODE:
1647 RETVAL = nreqs; 2015 RETVAL = eio_nreqs ();
1648 OUTPUT: 2016 OUTPUT:
1649 RETVAL 2017 RETVAL
1650 2018
1651int 2019int
1652nready() 2020nready ()
1653 PROTOTYPE:
1654 CODE: 2021 CODE:
1655 RETVAL = get_nready (); 2022 RETVAL = eio_nready ();
1656 OUTPUT: 2023 OUTPUT:
1657 RETVAL 2024 RETVAL
1658 2025
1659int 2026int
1660npending() 2027npending ()
1661 PROTOTYPE:
1662 CODE: 2028 CODE:
1663 RETVAL = get_npending (); 2029 RETVAL = eio_npending ();
1664 OUTPUT: 2030 OUTPUT:
1665 RETVAL 2031 RETVAL
1666 2032
1667int 2033int
1668nthreads() 2034nthreads ()
1669 PROTOTYPE:
1670 CODE: 2035 CODE:
1671 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2036 RETVAL = eio_nthreads ();
1672 RETVAL = started;
1673 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1674 OUTPUT: 2037 OUTPUT:
1675 RETVAL 2038 RETVAL
1676 2039
2040int
2041fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2042 CODE:
2043 RETVAL = posix_fadvise (fh, offset, length, advice);
2044 OUTPUT:
2045 RETVAL
2046
2047IV
2048sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2049 CODE:
2050 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2051 OUTPUT:
2052 RETVAL
2053
2054void
2055mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2056 PPCODE:
2057 sv_clear_foreign (scalar);
2058{
2059 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2060 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2061 if (addr == (void *)-1)
2062 XSRETURN_NO;
2063
2064 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2065
2066 if (!(prot & PROT_WRITE))
2067 SvREADONLY_on (scalar);
2068
2069 XSRETURN_YES;
2070}
2071
2072void
2073munmap (SV *scalar)
2074 CODE:
2075 sv_clear_foreign (scalar);
2076
2077SV *
2078mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2079 CODE:
2080{
2081 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2082 void *new;
2083
2084 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2085 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2086
2087 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2088
2089 RETVAL = &PL_sv_no;
2090
2091 if (new != (void *)-1)
2092 {
2093 RETVAL = new == (void *)mg->mg_ptr
2094 ? newSVpvn ("0 but true", 10)
2095 : &PL_sv_yes;
2096
2097 mg->mg_ptr = (char *)new;
2098 mg->mg_obj = (SV *)new_length;
2099
2100 SvPVX (scalar) = mg->mg_ptr;
2101 SvCUR_set (scalar, new_length);
2102 }
2103}
2104 OUTPUT:
2105 RETVAL
2106
2107int
2108madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2109 ALIAS:
2110 mprotect = 1
2111 CODE:
2112{
2113 STRLEN svlen;
2114 void *addr = SvPVbyte (scalar, svlen);
2115 STRLEN len = SvUV (length);
2116
2117 if (offset < 0)
2118 offset += svlen;
2119
2120 if (offset < 0 || offset > svlen)
2121 croak ("offset outside of scalar");
2122
2123 if (!SvOK (length) || len + offset > svlen)
2124 len = svlen - offset;
2125
2126 addr = (void *)(((intptr_t)addr) + offset);
2127 eio_page_align (&addr, &len);
2128
2129 switch (ix)
2130 {
2131 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2132 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2133 }
2134}
2135 OUTPUT:
2136 RETVAL
2137
2138int
2139munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2140 CODE:
2141{
2142 STRLEN svlen;
2143 void *addr = SvPVbyte (scalar, svlen);
2144 size_t len = SvUV (length);
2145
2146 if (offset < 0)
2147 offset += svlen;
2148
2149 if (offset < 0 || offset > svlen)
2150 croak ("offset outside of scalar");
2151
2152 if (!SvOK (length) || len + offset > svlen)
2153 len = svlen - offset;
2154
2155 addr = (void *)(((intptr_t)addr) + offset);
2156 eio_page_align (&addr, &len);
2157#if _POSIX_MEMLOCK_RANGE
2158 RETVAL = munlock (addr, len);
2159#else
2160 RETVAL = EIO_ENOSYS ();
2161#endif
2162}
2163 OUTPUT:
2164 RETVAL
2165
2166int
2167munlockall ()
2168 CODE:
2169#if _POSIX_MEMLOCK
2170 munlockall ();
2171#else
2172 RETVAL = EIO_ENOSYS ();
2173#endif
2174 OUTPUT:
2175 RETVAL
2176
2177int
2178splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2179 CODE:
2180{
2181#if HAVE_LINUX_SPLICE
2182 loff_t off_in_, off_out_;
2183 RETVAL = splice (
2184 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2185 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2186 length, flags
2187 );
2188#else
2189 RETVAL = EIO_ENOSYS ();
2190#endif
2191}
2192 OUTPUT:
2193 RETVAL
2194
2195int
2196tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2197 CODE:
2198#if HAVE_LINUX_SPLICE
2199 RETVAL = tee (rfh, wfh, length, flags);
2200#else
2201 RETVAL = EIO_ENOSYS ();
2202#endif
2203 OUTPUT:
2204 RETVAL
2205
2206int
2207pipesize (aio_rfd rfh, int new_size = -1)
2208 PROTOTYPE: $;$
2209 CODE:
2210#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2211 if (new_size >= 0)
2212 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2213 else
2214 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2215#else
2216 errno = ENOSYS;
2217 RETVAL = -1;
2218#endif
2219 OUTPUT:
2220 RETVAL
2221
2222void
2223pipe2 (int flags = 0)
2224 PROTOTYPE: ;$
2225 PPCODE:
2226{
2227 int fd[2];
2228 int res;
2229
2230 if (flags)
2231#if HAVE_PIPE2
2232 res = pipe2 (fd, flags);
2233#else
2234 res = (errno = ENOSYS, -1);
2235#endif
2236 else
2237 res = pipe (fd);
2238
2239 if (!res)
2240 {
2241 EXTEND (SP, 2);
2242 PUSHs (newmortalFH (fd[0], O_RDONLY));
2243 PUSHs (newmortalFH (fd[1], O_WRONLY));
2244 }
2245}
2246
2247void
2248eventfd (unsigned int initval = 0, int flags = 0)
2249 PPCODE:
2250{
2251 int fd;
2252#if HAVE_EVENTFD
2253 fd = eventfd (initval, flags);
2254#else
2255 fd = (errno = ENOSYS, -1);
2256#endif
2257
2258 XPUSHs (newmortalFH (fd, O_RDWR));
2259}
2260
2261void
2262timerfd_create (int clockid, int flags = 0)
2263 PPCODE:
2264{
2265 int fd;
2266#if HAVE_TIMERFD
2267 fd = timerfd_create (clockid, flags);
2268#else
2269 fd = (errno = ENOSYS, -1);
2270#endif
2271
2272 XPUSHs (newmortalFH (fd, O_RDWR));
2273}
2274
2275void
2276timerfd_settime (SV *fh, int flags, NV interval, NV value)
2277 PPCODE:
2278{
2279 int fd = s_fileno_croak (fh, 0);
2280#if HAVE_TIMERFD
2281 int res;
2282 struct itimerspec its, ots;
2283
2284 ts_set (&its.it_interval, interval);
2285 ts_set (&its.it_value , value);
2286 res = timerfd_settime (fd, flags, &its, &ots);
2287
2288 if (!res)
2289 {
2290 EXTEND (SP, 2);
2291 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2292 PUSHs (newSVnv (ts_get (&ots.it_value)));
2293 }
2294#else
2295 errno = ENOSYS;
2296#endif
2297}
2298
2299void
2300timerfd_gettime (SV *fh)
2301 PPCODE:
2302{
2303 int fd = s_fileno_croak (fh, 0);
2304#if HAVE_TIMERFD
2305 int res;
2306 struct itimerspec ots;
2307 res = timerfd_gettime (fd, &ots);
2308
2309 if (!res)
2310 {
2311 EXTEND (SP, 2);
2312 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2313 PUSHs (newSVnv (ts_get (&ots.it_value)));
2314 }
2315#else
2316 errno = ENOSYS;
2317#endif
2318}
2319
2320UV
2321get_fdlimit ()
2322 CODE:
2323#if HAVE_RLIMITS
2324 struct rlimit rl;
2325 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2326 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2327#endif
2328 XSRETURN_UNDEF;
2329 OUTPUT:
2330 RETVAL
2331
2332void
2333min_fdlimit (UV limit = 0x7fffffffU)
2334 CODE:
2335{
2336#if HAVE_RLIMITS
2337 struct rlimit rl;
2338 rlim_t orig_rlim_max;
2339 UV bit;
2340
2341 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2342 goto fail;
2343
2344 if (rl.rlim_cur == RLIM_INFINITY)
2345 XSRETURN_YES;
2346
2347 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2348
2349 if (rl.rlim_cur < limit)
2350 {
2351 rl.rlim_cur = limit;
2352
2353 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2354 rl.rlim_max = rl.rlim_cur;
2355 }
2356
2357 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2358 XSRETURN_YES;
2359
2360 if (errno == EPERM)
2361 {
2362 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2363 /* our limit overflows a system-wide limit */
2364 /* try an adaptive algorithm, but do not lower the hardlimit */
2365 rl.rlim_max = 0;
2366 for (bit = 0x40000000U; bit; bit >>= 1)
2367 {
2368 rl.rlim_max |= bit;
2369 rl.rlim_cur = rl.rlim_max;
2370
2371 /* nevr decrease the hard limit */
2372 if (rl.rlim_max < orig_rlim_max)
2373 break;
2374
2375 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2376 rl.rlim_max &= ~bit; /* too high, remove bit again */
2377 }
2378
2379 /* now, raise the soft limit to the max permitted */
2380 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2381 {
2382 rl.rlim_cur = rl.rlim_max;
2383 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2384 errno = EPERM;
2385 }
2386 }
2387#endif
2388 fail:
2389 XSRETURN_UNDEF;
2390}
2391
2392void _on_next_submit (SV *cb)
2393 CODE:
2394 SvREFCNT_dec (on_next_submit);
2395 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2396
1677PROTOTYPES: DISABLE 2397PROTOTYPES: DISABLE
2398
2399MODULE = IO::AIO PACKAGE = IO::AIO::WD
2400
2401BOOT:
2402{
2403 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2404 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2405}
2406
2407void
2408DESTROY (SV *self)
2409 CODE:
2410{
2411 aio_wd wd = SvAIO_WD (self);
2412#if HAVE_AT
2413 {
2414 SV *callback = &PL_sv_undef;
2415 dREQ; /* clobbers next_pri :/ */
2416 next_pri = req->pri; /* restore next_pri */
2417 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2418 req->type = EIO_WD_CLOSE;
2419 req->wd = wd;
2420 REQ_SEND;
2421 }
2422#else
2423 eio_wd_close_sync (wd);
2424#endif
2425}
1678 2426
1679MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2427MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1680 2428
1681void 2429void
1682cancel (aio_req_ornot req) 2430cancel (aio_req_ornot req)
1683 CODE: 2431 CODE:
1684 req_cancel (req); 2432 eio_cancel (req);
1685 2433
1686void 2434void
1687cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2435cb (aio_req_ornot req, SV *callback = NO_INIT)
1688 CODE: 2436 PPCODE:
2437{
2438 if (GIMME_V != G_VOID)
2439 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2440
2441 if (items > 1)
2442 {
2443 SV *cb_cv = get_cb (callback);
2444
1689 SvREFCNT_dec (req->callback); 2445 SvREFCNT_dec (req->callback);
1690 req->callback = newSVsv (callback); 2446 req->callback = SvREFCNT_inc (cb_cv);
2447 }
2448}
1691 2449
1692MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2450MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1693 2451
1694void 2452void
1695add (aio_req grp, ...) 2453add (aio_req grp, ...)
1696 PPCODE: 2454 PPCODE:
1697{ 2455{
1698 int i; 2456 int i;
1699 aio_req req;
1700 2457
1701 if (grp->fd == 2) 2458 if (grp->int1 == 2)
1702 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2459 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1703 2460
1704 for (i = 1; i < items; ++i ) 2461 for (i = 1; i < items; ++i )
1705 { 2462 {
2463 aio_req req;
2464
1706 if (GIMME_V != G_VOID) 2465 if (GIMME_V != G_VOID)
1707 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2466 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1708 2467
1709 req = SvAIO_REQ (ST (i)); 2468 req = SvAIO_REQ (ST (i));
1710 2469
1711 if (req) 2470 if (req)
1712 { 2471 eio_grp_add (grp, req);
1713 ++grp->length;
1714 req->grp = grp;
1715
1716 req->grp_prev = 0;
1717 req->grp_next = grp->grp_first;
1718
1719 if (grp->grp_first)
1720 grp->grp_first->grp_prev = req;
1721
1722 grp->grp_first = req;
1723 }
1724 } 2472 }
1725} 2473}
1726 2474
1727void 2475void
1728cancel_subs (aio_req_ornot req) 2476cancel_subs (aio_req_ornot req)
… …
1737 AV *av; 2485 AV *av;
1738 2486
1739 grp->errorno = errno; 2487 grp->errorno = errno;
1740 2488
1741 av = newAV (); 2489 av = newAV ();
2490 av_extend (av, items - 1);
1742 2491
1743 for (i = 1; i < items; ++i ) 2492 for (i = 1; i < items; ++i )
1744 av_push (av, newSVsv (ST (i))); 2493 av_push (av, newSVsv (ST (i)));
1745 2494
1746 SvREFCNT_dec (grp->data); 2495 SvREFCNT_dec (grp->sv1);
1747 grp->data = (SV *)av; 2496 grp->sv1 = (SV *)av;
1748} 2497}
1749 2498
1750void 2499void
1751errno (aio_req grp, int errorno = errno) 2500errno (aio_req grp, int errorno = errno)
1752 CODE: 2501 CODE:
1753 grp->errorno = errorno; 2502 grp->errorno = errorno;
1754 2503
1755void 2504void
1756limit (aio_req grp, int limit) 2505limit (aio_req grp, int limit)
1757 CODE: 2506 CODE:
1758 grp->fd2 = limit; 2507 eio_grp_limit (grp, limit);
1759 aio_grp_feed (grp);
1760 2508
1761void 2509void
1762feed (aio_req grp, SV *callback=&PL_sv_undef) 2510feed (aio_req grp, SV *callback = &PL_sv_undef)
1763 CODE: 2511 CODE:
1764{ 2512{
1765 SvREFCNT_dec (grp->fh2); 2513 SvREFCNT_dec (grp->sv2);
1766 grp->fh2 = newSVsv (callback); 2514 grp->sv2 = newSVsv (callback);
2515 grp->feed = aio_grp_feed;
1767 2516
1768 if (grp->fd2 <= 0) 2517 if (grp->int2 <= 0)
1769 grp->fd2 = 2; 2518 grp->int2 = 2;
1770 2519
1771 aio_grp_feed (grp); 2520 eio_grp_limit (grp, grp->int2);
1772} 2521}
1773 2522

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