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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.98 by root, Wed May 9 06:45:12 2007 UTC vs.
Revision 1.294 by root, Sat Apr 9 19:34:05 2022 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
8 9
9#include "autoconf/config.h" 10#if !defined mg_findext
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
10 13
11#include <stddef.h> 14#include <stddef.h>
12#include <stdlib.h> 15#include <stdlib.h>
13#include <errno.h> 16#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
17#include <sys/stat.h> 19#include <sys/stat.h>
18#include <limits.h> 20#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 21#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 22#include <sched.h>
23 23
24#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
25# if __linux 25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
85#else
86
87 #include <sys/time.h>
26# include <sys/sendfile.h> 88 #include <sys/select.h>
27# elif __freebsd 89 #include <sys/wait.h>
90 #include <unistd.h>
91 #include <utime.h>
92 #include <signal.h>
93
94 #define EIO_STRUCT_STAT Stat_t
95
96#endif
97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
28# include <sys/socket.h> 114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
29# include <sys/uio.h> 124# include <sys/uio.h>
30# elif __hpux 125#endif
31# include <sys/socket.h> 126
32# elif __solaris /* not yet */ 127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
157
158#include "schmorp.h"
159
160#if HAVE_EVENTFD
33# include <sys/sendfile.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
166#endif
167
168#if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171#endif
172
173typedef SV SV8; /* byte-sv, used for argument-checking */
174typedef int aio_rfd; /* read file desriptor */
175typedef int aio_wfd; /* write file descriptor */
176
177static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179#define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186#define EIO_NO_WRAPPERS 1
187
188#include "libeio/eio.h"
189
190static int req_invoke (eio_req *req);
191#define EIO_FINISH(req) req_invoke (req)
192static void req_destroy (eio_req *grp);
193#define EIO_DESTROY(req) req_destroy (req)
194
195#include "libeio/eio.c"
196
197#if !HAVE_POSIX_FADVISE
198# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199#endif
200
201#if !HAVE_POSIX_MADVISE
202# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203#endif
204
205#ifndef MAP_ANONYMOUS
206# ifdef MAP_ANON
207# define MAP_ANONYMOUS MAP_ANON
34# else 208# else
35# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 210# endif
37#endif 211#endif
38 212
39/* number of seconds after which idle threads exit */ 213#ifndef makedev
40#define IDLE_TIMEOUT 10 214# define makedev(maj,min) (((maj) << 8) | (min))
41
42/* used for struct dirent, AIX doesn't provide it */
43#ifndef NAME_MAX
44# define NAME_MAX 4096
45#endif 215#endif
216#ifndef major
217# define major(dev) ((dev) >> 8)
218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
46 222
47/* buffer size for various temporary buffers */ 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
48#define AIO_BUFSIZE 65536 224#ifdef __sun
225# undef PAGESIZE
226#endif
49 227
50#define dBUF \ 228#if PAGESIZE <= 0
51 char *aio_buf; \ 229# define PAGESIZE sysconf (_SC_PAGESIZE)
52 LOCK (wrklock); \ 230#endif
53 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 231
54 UNLOCK (wrklock); \ 232/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
55 if (!aio_buf) \ 233#ifdef __sun
234# undef HAVE_SYSCALL
235#endif
236
237#if HAVE_SYSCALL
238#include <sys/syscall.h>
239#else
240# define syscall(nr,...) (errno = ENOSYS, -1)
241#endif
242
243/*****************************************************************************/
244
245#if !_POSIX_MAPPED_FILES
246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
247# define munmap(addr,length) EIO_ENOSYS ()
248#endif
249
250#if !_POSIX_MEMORY_PROTECTION
251# define mprotect(addr,len,prot) EIO_ENOSYS ()
252#endif
253
254#if !MREMAP_MAYMOVE
255# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
256#endif
257
258#define FOREIGN_MAGIC PERL_MAGIC_ext
259
260static int ecb_cold
261mmap_free (pTHX_ SV *sv, MAGIC *mg)
262{
263 int old_errno = errno;
264 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
265 errno = old_errno;
266
267 mg->mg_obj = 0; /* just in case */
268
269 SvREADONLY_off (sv);
270
271 if (SvPVX (sv) != mg->mg_ptr)
272 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
273
274 SvCUR_set (sv, 0);
275 SvPVX (sv) = 0;
276 SvOK_off (sv);
277
56 return -1; 278 return 0;
279}
57 280
58typedef SV SV8; /* byte-sv, used for argument-checking */ 281static MGVTBL mmap_vtbl = {
59 282 0, 0, 0, 0, mmap_free
60enum {
61 REQ_QUIT,
62 REQ_OPEN, REQ_CLOSE,
63 REQ_READ, REQ_WRITE, REQ_READAHEAD,
64 REQ_SENDFILE,
65 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
66 REQ_FSYNC, REQ_FDATASYNC,
67 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
68 REQ_MKNOD, REQ_READDIR,
69 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
70 REQ_GROUP, REQ_NOP,
71 REQ_BUSY,
72}; 283};
73 284
74#define AIO_REQ_KLASS "IO::AIO::REQ" 285static int ecb_cold
75#define AIO_GRP_KLASS "IO::AIO::GRP" 286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
76
77typedef struct aio_cb
78{ 287{
79 struct aio_cb *volatile next; 288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
80 290
81 SV *callback, *fh; 291 SvREADONLY_off (sv);
82 SV *sv1, *sv2;
83 void *ptr1, *ptr2;
84 off_t offs;
85 size_t size;
86 ssize_t result;
87 292
88 STRLEN stroffset; 293 if (SvPVX (sv) != mg->mg_ptr)
89 int type; 294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
90 int int1, int2;
91 int errorno;
92 mode_t mode; /* open */
93 295
94 unsigned char flags; 296 SvCUR_set (sv, 0);
95 unsigned char pri; 297 SvPVX (sv) = 0;
298 SvOK_off (sv);
96 299
97 SV *self; /* the perl counterpart of this request, if any */ 300 return 0;
98 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 301}
99} aio_cb;
100 302
101enum { 303static MGVTBL sysfree_vtbl = {
102 FLAG_CANCELLED = 0x01, /* request was cancelled */ 304 0, 0, 0, 0, sysfree_free
103 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
104 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
105}; 305};
106 306
107typedef aio_cb *aio_req; 307/*****************************************************************************/
108typedef aio_cb *aio_req_ornot;
109 308
110enum { 309/* helper: set scalar to foreign ptr with custom free */
111 PRI_MIN = -4, 310ecb_noinline
112 PRI_MAX = 4, 311static void
113 312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
114 DEFAULT_PRI = 0,
115 PRI_BIAS = -PRI_MIN,
116 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
117};
118
119#define AIO_TICKS ((1000000 + 1023) >> 10)
120
121static unsigned int max_poll_time = 0;
122static unsigned int max_poll_reqs = 0;
123
124/* calculcate time difference in ~1/AIO_TICKS of a second */
125static int tvdiff (struct timeval *tv1, struct timeval *tv2)
126{ 313{
127 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 314 sv_force_normal (sv);
128 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
129}
130 315
131static thread_t main_tid; 316 /* we store the length in mg_obj, as namlen is I32 :/ */
132static int main_sig; 317 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
133static int block_sig_level; 318 ->mg_obj = (SV *)length;
134 319
135void block_sig () 320 SvUPGRADE (sv, SVt_PV); /* nop... */
136{
137 sigset_t ss;
138 321
139 if (block_sig_level++) 322 if (SvLEN (sv))
323 Safefree (SvPVX (sv));
324
325 SvPVX (sv) = (char *)addr;
326 SvCUR_set (sv, length);
327 SvLEN_set (sv, 0);
328 SvPOK_only (sv);
329}
330
331static void
332sv_clear_foreign (SV *sv)
333{
334 /* todo: iterate over magic and only free ours, but of course */
335 /* the perl5porters will call that (correct) behaviour buggy */
336 sv_unmagic (sv, FOREIGN_MAGIC);
337}
338
339/*****************************************************************************/
340
341/* defines all sorts of constants to 0 unless they are already defined */
342/* also provides const_iv_ and const_niv_ macros for them */
343#include "def0.h"
344
345/*****************************************************************************/
346
347static void
348fiemap (eio_req *req)
349{
350 req->result = -1;
351
352#if HAVE_FIEMAP
353 /* assume some c99 */
354 struct fiemap *fiemap = 0;
355 size_t end_offset;
356 int count = req->int3;
357
358 req->flags |= EIO_FLAG_PTR1_FREE;
359
360 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
361 /* increase in fixed steps */
362 if (count < 0)
363 count = 8;
364
365 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
366 errno = ENOMEM;
367 if (!fiemap)
140 return; 368 return;
141 369
142 if (!main_sig) 370 req->ptr1 = fiemap;
371
372 fiemap->fm_start = req->offs;
373 fiemap->fm_length = req->size;
374 fiemap->fm_flags = req->int2;
375 fiemap->fm_extent_count = count;
376
377 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
143 return; 378 return;
144 379
145 sigemptyset (&ss); 380 if (req->int3 >= 0 /* not autosizing */
146 sigaddset (&ss, main_sig); 381 || !fiemap->fm_mapped_extents /* no more extents */
147 pthread_sigmask (SIG_BLOCK, &ss, 0); 382 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
148} 383 goto done;
149 384
150void unblock_sig () 385 /* else we have to loop -
151{ 386 * it would be tempting (actually I tried that first) to just query the
152 sigset_t ss; 387 * number of extents needed, but linux often feels like not returning all
388 * extents, without telling us it left any out. this complicates
389 * this quite a bit.
390 */
153 391
154 if (--block_sig_level) 392 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
155 return;
156 393
157 if (!main_sig) 394 for (;;)
158 return;
159
160 sigemptyset (&ss);
161 sigaddset (&ss, main_sig);
162 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
163}
164
165static int next_pri = DEFAULT_PRI + PRI_BIAS;
166
167static unsigned int started, idle, wanted;
168
169/* worker threads management */
170static mutex_t wrklock = MUTEX_INIT;
171
172typedef struct worker {
173 /* locked by wrklock */
174 struct worker *prev, *next;
175
176 thread_t tid;
177
178 /* locked by reslock, reqlock or wrklock */
179 aio_req req; /* currently processed request */
180 void *dbuf;
181 DIR *dirp;
182} worker;
183
184static worker wrk_first = { &wrk_first, &wrk_first, 0 };
185
186static void worker_clear (worker *wrk)
187{
188 if (wrk->dirp)
189 { 395 {
190 closedir (wrk->dirp); 396 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
191 wrk->dirp = 0; 397 char scratch[3072];
192 } 398 struct fiemap *incmap = (struct fiemap *)scratch;
193 399
194 if (wrk->dbuf) 400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
195 { 401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
196 free (wrk->dbuf); 402 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
197 wrk->dbuf = 0; 403 incmap->fm_flags = fiemap->fm_flags;
198 } 404 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
199}
200 405
201static void worker_free (worker *wrk) 406 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
202{
203 wrk->next->prev = wrk->prev;
204 wrk->prev->next = wrk->next;
205
206 free (wrk);
207}
208
209static volatile unsigned int nreqs, nready, npending;
210static volatile unsigned int max_idle = 4;
211static volatile unsigned int max_outstanding = 0xffffffff;
212static int respipe [2];
213
214static mutex_t reslock = MUTEX_INIT;
215static mutex_t reqlock = MUTEX_INIT;
216static cond_t reqwait = COND_INIT;
217
218#if WORDACCESS_UNSAFE
219
220static unsigned int get_nready ()
221{
222 unsigned int retval;
223
224 LOCK (reqlock);
225 retval = nready;
226 UNLOCK (reqlock);
227
228 return retval;
229}
230
231static unsigned int get_npending ()
232{
233 unsigned int retval;
234
235 LOCK (reslock);
236 retval = npending;
237 UNLOCK (reslock);
238
239 return retval;
240}
241
242static unsigned int get_nthreads ()
243{
244 unsigned int retval;
245
246 LOCK (wrklock);
247 retval = started;
248 UNLOCK (wrklock);
249
250 return retval;
251}
252
253#else
254
255# define get_nready() nready
256# define get_npending() npending
257# define get_nthreads() started
258
259#endif
260
261/*
262 * a somewhat faster data structure might be nice, but
263 * with 8 priorities this actually needs <20 insns
264 * per shift, the most expensive operation.
265 */
266typedef struct {
267 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
268 int size;
269} reqq;
270
271static reqq req_queue;
272static reqq res_queue;
273
274int reqq_push (reqq *q, aio_req req)
275{
276 int pri = req->pri;
277 req->next = 0;
278
279 if (q->qe[pri])
280 {
281 q->qe[pri]->next = req;
282 q->qe[pri] = req;
283 }
284 else
285 q->qe[pri] = q->qs[pri] = req;
286
287 return q->size++;
288}
289
290aio_req reqq_shift (reqq *q)
291{
292 int pri;
293
294 if (!q->size)
295 return 0; 407 return;
296 408
297 --q->size; 409 if (!incmap->fm_mapped_extents)
410 goto done;
298 411
299 for (pri = NUM_PRI; pri--; ) 412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
300 { 413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
301 aio_req req = q->qs[pri]; 414 errno = ENOMEM;
302
303 if (req) 415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
304 { 421 {
305 if (!(q->qs[pri] = req->next)) 422 struct fiemap_extent *e = incmap->fm_extents + count;
306 q->qe[pri] = 0;
307 423
308 return req; 424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
426 if (e->fe_logical >= end_offset)
427 goto done;
428
429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
430 goto done;
431
309 } 432 }
310 } 433 }
311 434
312 abort (); 435done:
313} 436 req->result = 0;
314 437
315static int poll_cb (); 438#else
316static int req_invoke (aio_req req); 439 errno = ENOSYS;
440#endif
441}
442
443/*****************************************************************************/
444
445static int close_fd; /* dummy fd to close fds via dup2 */
446
447#if HAVE_STATX
448static struct statx stx;
449#define statx_offsetof(member) offsetof (struct statx, member)
450#define eio__statx statx
451#else
452#define statx_offsetof(member) 0
453#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
454#endif
455
456enum {
457 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
458};
459
460typedef eio_req *aio_req;
461typedef eio_req *aio_req_ornot;
462typedef eio_wd aio_wd;
463
464static SV *on_next_submit;
465static int next_pri = EIO_PRI_DEFAULT;
466static int max_outstanding;
467
468static s_epipe respipe;
469
317static void req_free (aio_req req); 470static void req_destroy (aio_req req);
318static void req_cancel (aio_req req); 471static void req_cancel (aio_req req);
319 472
473static void
474want_poll (void)
475{
476 /* write a dummy byte to the pipe so fh becomes ready */
477 s_epipe_signal (&respipe);
478}
479
480static void
481done_poll (void)
482{
483 /* read any signals sent by the worker threads */
484 s_epipe_drain (&respipe);
485}
486
320/* must be called at most once */ 487/* must be called at most once */
321static SV *req_sv (aio_req req, const char *klass) 488ecb_noinline
489static SV *
490req_sv (aio_req req, HV *stash)
322{ 491{
323 if (!req->self) 492 if (!req->self)
324 { 493 {
325 req->self = (SV *)newHV (); 494 req->self = (SV *)newHV ();
326 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
327 } 496 }
328 497
329 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
330} 499}
331 500
332static aio_req SvAIO_REQ (SV *sv) 501static SV *
502newSVaio_wd (aio_wd wd)
503{
504 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
505}
506
507ecb_noinline
508static aio_req
509SvAIO_REQ (SV *sv)
333{ 510{
334 MAGIC *mg; 511 MAGIC *mg;
335 512
336 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 513 if (!SvROK (sv)
514 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
515 || (SvSTASH (SvRV (sv)) != aio_grp_stash
516 && SvSTASH (SvRV (sv)) != aio_req_stash
517 && !sv_derived_from (sv, "IO::AIO::REQ")))
337 croak ("object of class " AIO_REQ_KLASS " expected"); 518 croak ("object of class IO::AIO::REQ expected");
338 519
339 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
340 521
341 return mg ? (aio_req)mg->mg_ptr : 0; 522 return mg ? (aio_req)mg->mg_ptr : 0;
342} 523}
343 524
525static aio_wd
526SvAIO_WD (SV *sv)
527{
528 if (!SvROK (sv)
529 || SvTYPE (SvRV (sv)) != SVt_PVMG
530 || SvSTASH (SvRV (sv)) != aio_wd_stash)
531 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
532
533 return (aio_wd)(long)SvIVX (SvRV (sv));
534}
535
536static SV *
537newmortalFH (int fd, int flags)
538{
539 if (fd < 0)
540 return &PL_sv_undef;
541
542 GV *gv = (GV *)sv_newmortal ();
543 char sym[64];
544 int symlen;
545
546 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
547 gv_init (gv, aio_stash, sym, symlen, 0);
548
549 symlen = snprintf (
550 sym,
551 sizeof (sym),
552 "%s&=%d",
553 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
554 fd
555 );
556
557 return do_open (gv, sym, symlen, 0, 0, 0, 0)
558 ? (SV *)gv : &PL_sv_undef;
559}
560
561static void
344static void aio_grp_feed (aio_req grp) 562aio_grp_feed (aio_req grp)
345{ 563{
346 block_sig (); 564 if (grp->sv2 && SvOK (grp->sv2))
347
348 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
349 { 565 {
350 int old_len = grp->size;
351
352 if (grp->sv2 && SvOK (grp->sv2))
353 {
354 dSP; 566 dSP;
355 567
356 ENTER; 568 ENTER;
357 SAVETMPS; 569 SAVETMPS;
358 PUSHMARK (SP); 570 PUSHMARK (SP);
359 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 571 XPUSHs (req_sv (grp, aio_grp_stash));
360 PUTBACK; 572 PUTBACK;
361 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 573 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
362 SPAGAIN; 574 SPAGAIN;
363 FREETMPS; 575 FREETMPS;
364 LEAVE; 576 LEAVE;
365 }
366
367 /* stop if no progress has been made */
368 if (old_len == grp->size)
369 {
370 SvREFCNT_dec (grp->sv2);
371 grp->sv2 = 0;
372 break;
373 }
374 } 577 }
375
376 unblock_sig ();
377} 578}
378 579
379static void aio_grp_dec (aio_req grp) 580ecb_noinline
581static void
582req_submit (eio_req *req)
380{ 583{
381 --grp->size; 584 eio_submit (req);
382 585
383 /* call feeder, if applicable */ 586 if (expect_false (on_next_submit))
384 aio_grp_feed (grp);
385
386 /* finish, if done */
387 if (!grp->size && grp->int1)
388 { 587 {
389 block_sig (); 588 dSP;
589 SV *cb = sv_2mortal (on_next_submit);
390 590
391 if (!req_invoke (grp)) 591 on_next_submit = 0;
392 {
393 req_free (grp);
394 unblock_sig ();
395 croak (0);
396 }
397 592
398 req_free (grp); 593 PUSHMARK (SP);
399 unblock_sig (); 594 PUTBACK;
595 call_sv (cb, G_DISCARD | G_EVAL);
400 } 596 }
401} 597}
402 598
599static int
403static int req_invoke (aio_req req) 600req_invoke (eio_req *req)
404{ 601{
405 dSP;
406
407 if (req->flags & FLAG_SV1_RO_OFF) 602 if (req->flags & FLAG_SV2_RO_OFF)
408 SvREADONLY_off (req->sv1); 603 SvREADONLY_off (req->sv2);
409 604
410 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 605 if (!EIO_CANCELLED (req) && req->callback)
411 { 606 {
607 dSP;
608 static SV *sv_result_cache; /* caches the result integer SV */
609 SV *sv_result;
610
412 ENTER; 611 ENTER;
413 SAVETMPS; 612 SAVETMPS;
414 PUSHMARK (SP); 613 PUSHMARK (SP);
415 EXTEND (SP, 1); 614 EXTEND (SP, 1);
416 615
616 /* do not recreate the result IV from scratch each time */
617 if (expect_true (sv_result_cache))
618 {
619 sv_result = sv_result_cache; sv_result_cache = 0;
620 SvIV_set (sv_result, req->result);
621 SvIOK_only (sv_result);
622 }
623 else
624 {
625 sv_result = newSViv (req->result);
626 SvREADONLY_on (sv_result);
627 }
628
417 switch (req->type) 629 switch (req->type)
418 { 630 {
631 case EIO_WD_OPEN:
632 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
633 break;
634
419 case REQ_READDIR: 635 case EIO_READDIR:
420 { 636 {
421 SV *rv = &PL_sv_undef; 637 SV *rv = &PL_sv_undef;
422 638
423 if (req->result >= 0) 639 if (req->result >= 0)
424 { 640 {
425 int i; 641 int i;
426 char *buf = req->ptr2; 642 char *names = (char *)req->ptr2;
643 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
427 AV *av = newAV (); 644 AV *av = newAV ();
428 645
429 av_extend (av, req->result - 1); 646 av_extend (av, req->result - 1);
430 647
431 for (i = 0; i < req->result; ++i) 648 for (i = 0; i < req->result; ++i)
432 { 649 {
433 SV *sv = newSVpv (buf, 0); 650 if (req->int1 & EIO_READDIR_DENTS)
651 {
652 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
434 653
654 if (req->int1 & EIO_READDIR_CUSTOM2)
655 {
656 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
657 AV *avent = newAV ();
658
659 av_extend (avent, 2);
660
661 if (!sv_type [ent->type])
662 {
663 sv_type [ent->type] = newSViv (ent->type);
664 SvREADONLY_on (sv_type [ent->type]);
665 }
666
667 av_store (avent, 0, namesv);
668 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
669 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
670
671 av_store (av, i, newRV_noinc ((SV *)avent));
672 }
673 else
435 av_store (av, i, sv); 674 av_store (av, i, namesv);
675
676 ++ent;
677 }
678 else
679 {
680 SV *name = newSVpv (names, 0);
681 av_store (av, i, name);
436 buf += SvCUR (sv) + 1; 682 names += SvCUR (name) + 1;
683 }
437 } 684 }
438 685
439 rv = sv_2mortal (newRV_noinc ((SV *)av)); 686 rv = sv_2mortal (newRV_noinc ((SV *)av));
440 } 687 }
441 688
442 PUSHs (rv); 689 PUSHs (rv);
690
691 if (req->int1 & EIO_READDIR_CUSTOM1)
692 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
443 } 693 }
444 break; 694 break;
445 695
446 case REQ_OPEN: 696 case EIO_OPEN:
697 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
698 break;
699
700 case EIO_STATVFS:
701 case EIO_FSTATVFS:
447 { 702 {
448 /* convert fd to fh */ 703 SV *rv = &PL_sv_undef;
449 SV *fh; 704
705#ifndef _WIN32
706 if (req->result >= 0)
707 {
708 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
709 HV *hv = newHV ();
710 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
711 * chooses to make it a struct.
712 */
713 unsigned long fsid = 0;
714 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
450 715
451 PUSHs (sv_2mortal (newSViv (req->result))); 716 rv = sv_2mortal (newRV_noinc ((SV *)hv));
452 PUTBACK;
453 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
454 SPAGAIN;
455 717
456 fh = POPs; 718 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
457 PUSHMARK (SP); 719 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
720 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
721 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
722 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
723 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
724 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
725 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
726 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
727 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
728 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
729 }
730#endif
731
458 XPUSHs (fh); 732 PUSHs (rv);
459 } 733 }
734
460 break; 735 break;
461 736
462 case REQ_GROUP: 737 case EIO_GROUP:
463 req->int1 = 2; /* mark group as finished */ 738 req->int1 = 2; /* mark group as finished */
464 739
465 if (req->sv1) 740 if (req->sv1)
466 { 741 {
467 int i; 742 int i;
… …
471 for (i = 0; i <= AvFILL (av); ++i) 746 for (i = 0; i <= AvFILL (av); ++i)
472 PUSHs (*av_fetch (av, i, 0)); 747 PUSHs (*av_fetch (av, i, 0));
473 } 748 }
474 break; 749 break;
475 750
476 case REQ_NOP: 751 case EIO_NOP:
477 case REQ_BUSY: 752 case EIO_BUSY:
478 break; 753 break;
479 754
480 case REQ_READLINK: 755 case EIO_READLINK:
756 case EIO_REALPATH:
481 if (req->result > 0) 757 if (req->result > 0)
758 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
759 break;
760
761 case EIO_STAT:
762 case EIO_LSTAT:
763 case EIO_FSTAT:
764 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
765
766 if (!(PL_laststatval = req->result))
767 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
768 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
769
770 PUSHs (sv_result);
771 break;
772
773 case EIO_SEEK:
774 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
775 break;
776
777 case EIO_READ:
778 {
779 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
780 *SvEND (req->sv2) = 0;
781 SvPOK_only (req->sv2);
782 SvSETMAGIC (req->sv2);
783 PUSHs (sv_result);
784 }
785 break;
786
787 case EIO_SLURP:
788 {
789 if (req->result >= 0)
790 {
791 /* if length was originally not known, we steal the malloc'ed memory */
792 if (req->flags & EIO_FLAG_PTR2_FREE)
793 {
794 req->flags &= ~EIO_FLAG_PTR2_FREE;
795 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
796 }
797 else
798 {
799 SvCUR_set (req->sv2, req->result);
800 *SvEND (req->sv2) = 0;
801 SvPOK_only (req->sv2);
802 }
803
804 SvSETMAGIC (req->sv2);
805 }
806
807 PUSHs (sv_result);
808 }
809 break;
810
811 case EIO_CUSTOM:
812 if (req->feed == fiemap)
482 { 813 {
483 SvCUR_set (req->sv1, req->result); 814#if HAVE_FIEMAP
484 *SvEND (req->sv1) = 0;
485 PUSHs (req->sv1); 815 if (!req->result)
816 {
817 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
818
819 if (fiemap->fm_extent_count)
820 {
821 AV *av = newAV ();
822 int i;
823
824 while (fiemap->fm_mapped_extents)
825 {
826 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
827 AV *ext_av = newAV ();
828
829 av_store (ext_av, 3, newSVuv (extent->fe_flags));
830 av_store (ext_av, 2, newSVval64 (extent->fe_length));
831 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
832 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
833
834 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
835 }
836
837 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
838 }
839 else
840 {
841 SvIV_set (sv_result, fiemap->fm_mapped_extents);
842 PUSHs (sv_result);
843 }
844 }
845#endif
486 } 846 }
847 else
848 PUSHs (sv_result);
487 break; 849 break;
488 850
489 case REQ_STAT: 851#if 0
490 case REQ_LSTAT: 852 case EIO_CLOSE:
491 case REQ_FSTAT: 853 PerlIOUnix_refcnt_dec (req->int1);
492 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
493 PL_laststatval = req->result;
494 PL_statcache = *(Stat_t *)(req->ptr2);
495 PUSHs (sv_2mortal (newSViv (req->result)));
496 break; 854 break;
855#endif
497 856
498 case REQ_READ: 857 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
499 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 858 if (req->result > 0)
500 *SvEND (req->sv1) = 0; 859 SvIV_set (sv_result, 0);
501 PUSHs (sv_2mortal (newSViv (req->result))); 860 /* FALLTHROUGH */
502 break;
503 861
504 default: 862 default:
505 PUSHs (sv_2mortal (newSViv (req->result))); 863 PUSHs (sv_result);
506 break; 864 break;
507 } 865 }
508 866
509 errno = req->errorno; 867 errno = req->errorno;
510 868
511 PUTBACK; 869 PUTBACK;
512 call_sv (req->callback, G_VOID | G_EVAL); 870 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
513 SPAGAIN; 871 SPAGAIN;
872
873 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
874 SvREFCNT_dec (sv_result);
875 else
876 sv_result_cache = sv_result;
514 877
515 FREETMPS; 878 FREETMPS;
516 LEAVE; 879 LEAVE;
880
881 PUTBACK;
517 } 882 }
518 883
519 if (req->grp)
520 {
521 aio_req grp = req->grp;
522
523 /* unlink request */
524 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
525 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
526
527 if (grp->grp_first == req)
528 grp->grp_first = req->grp_next;
529
530 aio_grp_dec (grp);
531 }
532
533 return !SvTRUE (ERRSV); 884 return !!SvTRUE (ERRSV);
534} 885}
535 886
536static void req_free (aio_req req) 887static void
888req_destroy (aio_req req)
537{ 889{
538 if (req->self) 890 if (req->self)
539 { 891 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 892 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 893 SvREFCNT_dec (req->self);
542 } 894 }
543 895
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 896 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 900 SvREFCNT_dec (req->callback);
548 901
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 902 free (req);
553} 903}
554 904
905static void
555static void req_cancel_subs (aio_req grp) 906req_cancel_subs (aio_req grp)
556{ 907{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 908 if (grp->type != EIO_GROUP)
560 return; 909 return;
561 910
562 SvREFCNT_dec (grp->sv2); 911 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 912 grp->sv2 = 0;
564 913
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 914 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 915}
568 916
569static void req_cancel (aio_req req) 917ecb_cold
918static void
919create_respipe (void)
570{ 920{
571 req->flags |= FLAG_CANCELLED; 921 if (s_epipe_renew (&respipe))
572 922 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 923}
575 924
576static void *aio_proc(void *arg); 925static void
577 926poll_wait (void)
578static void start_thread (void)
579{ 927{
580 worker *wrk = calloc (1, sizeof (worker));
581
582 if (!wrk)
583 croak ("unable to allocate worker thread data");
584
585 LOCK (wrklock);
586
587 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
588 {
589 wrk->prev = &wrk_first;
590 wrk->next = wrk_first.next;
591 wrk_first.next->prev = wrk;
592 wrk_first.next = wrk;
593 ++started;
594 }
595 else
596 free (wrk);
597
598 UNLOCK (wrklock);
599}
600
601static void maybe_start_thread ()
602{
603 if (get_nthreads () >= wanted)
604 return;
605
606 /* todo: maybe use idle here, but might be less exact */
607 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
608 return;
609
610 start_thread ();
611}
612
613static void req_send (aio_req req)
614{
615 block_sig ();
616
617 ++nreqs;
618
619 LOCK (reqlock);
620 ++nready;
621 reqq_push (&req_queue, req);
622 COND_SIGNAL (reqwait);
623 UNLOCK (reqlock);
624
625 unblock_sig ();
626
627 maybe_start_thread ();
628}
629
630static void end_thread (void)
631{
632 aio_req req;
633
634 Newz (0, req, 1, aio_cb);
635
636 req->type = REQ_QUIT;
637 req->pri = PRI_MAX + PRI_BIAS;
638
639 LOCK (reqlock);
640 reqq_push (&req_queue, req);
641 COND_SIGNAL (reqwait);
642 UNLOCK (reqlock);
643
644 LOCK (wrklock);
645 --started;
646 UNLOCK (wrklock);
647}
648
649static void set_max_idle (int nthreads)
650{
651 if (WORDACCESS_UNSAFE) LOCK (reqlock);
652 max_idle = nthreads <= 0 ? 1 : nthreads;
653 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
654}
655
656static void min_parallel (int nthreads)
657{
658 if (wanted < nthreads)
659 wanted = nthreads;
660}
661
662static void max_parallel (int nthreads)
663{
664 if (wanted > nthreads)
665 wanted = nthreads;
666
667 while (started > wanted)
668 end_thread ();
669}
670
671static void poll_wait ()
672{
673 fd_set rfd;
674
675 while (nreqs) 928 while (eio_nreqs ())
676 { 929 {
677 int size; 930 int size;
678 if (WORDACCESS_UNSAFE) LOCK (reslock); 931
932 X_LOCK (EIO_POOL->reslock);
679 size = res_queue.size; 933 size = EIO_POOL->res_queue.size;
680 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 934 X_UNLOCK (EIO_POOL->reslock);
681 935
682 if (size) 936 if (size)
683 return; 937 return;
684 938
685 maybe_start_thread (); 939 etp_maybe_start_thread (EIO_POOL);
686 940
687 FD_ZERO(&rfd); 941 s_epipe_wait (&respipe);
688 FD_SET(respipe [0], &rfd);
689
690 select (respipe [0] + 1, &rfd, 0, 0, 0);
691 } 942 }
692} 943}
693 944
694static int poll_cb () 945static int
946poll_cb (void)
695{ 947{
696 dSP;
697 int count = 0;
698 int maxreqs = max_poll_reqs;
699 int do_croak = 0;
700 struct timeval tv_start, tv_now;
701 aio_req req;
702
703 if (max_poll_time)
704 gettimeofday (&tv_start, 0);
705
706 block_sig ();
707
708 for (;;) 948 for (;;)
709 { 949 {
710 for (;;) 950 int res = eio_poll ();
951
952 if (res > 0)
953 croak (0);
954
955 if (!max_outstanding || max_outstanding > eio_nreqs ())
956 return res;
957
958 poll_wait ();
959 }
960}
961
962ecb_cold
963static void
964reinit (void)
965{
966 create_respipe ();
967
968 if (eio_init (want_poll, done_poll) < 0)
969 croak ("IO::AIO: unable to initialise eio library");
970}
971
972/*****************************************************************************/
973
974static SV *
975get_cb (SV *cb_sv)
976{
977 SvGETMAGIC (cb_sv);
978 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
979}
980
981ecb_noinline
982static aio_req ecb_noinline
983dreq (SV *callback)
984{
985 SV *cb_cv;
986 aio_req req;
987 int req_pri = next_pri;
988 next_pri = EIO_PRI_DEFAULT;
989
990 cb_cv = get_cb (callback);
991
992 req = calloc (sizeof (*req), 1);
993 if (!req)
994 croak ("out of memory during eio_req allocation");
995
996 req->callback = SvREFCNT_inc (cb_cv);
997 req->pri = req_pri;
998
999 return req;
1000}
1001
1002#define dREQ \
1003 aio_req req = dreq (callback); \
1004
1005#define REQ_SEND \
1006 PUTBACK; \
1007 req_submit (req); \
1008 SPAGAIN; \
1009 \
1010 if (GIMME_V != G_VOID) \
1011 XPUSHs (req_sv (req, aio_req_stash));
1012
1013/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1014ecb_inline
1015void
1016req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1017{
1018 if (expect_false (SvROK (path)))
1019 {
1020 SV *rv = SvRV (path);
1021 SV *wdob;
1022
1023 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
711 { 1024 {
712 maybe_start_thread (); 1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
713 1027
714 LOCK (reslock); 1028 if (SvOK (wdob))
715 req = reqq_shift (&res_queue);
716
717 if (req)
718 { 1029 {
719 --npending; 1030 *wd = SvAIO_WD (wdob);
720 1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
721 if (!res_queue.size)
722 {
723 /* read any signals sent by the worker threads */
724 char buf [4];
725 while (read (respipe [0], buf, 4) == 4)
726 ;
727 }
728 }
729
730 UNLOCK (reslock);
731
732 if (!req)
733 break;
734
735 --nreqs;
736
737 if (req->type == REQ_GROUP && req->size)
738 {
739 req->int1 = 1; /* mark request as delayed */
740 continue;
741 } 1032 }
742 else 1033 else
743 { 1034 *wd = EIO_INVALID_WD;
744 if (!req_invoke (req))
745 {
746 req_free (req);
747 unblock_sig ();
748 croak (0);
749 }
750
751 count++;
752 }
753
754 req_free (req);
755
756 if (maxreqs && !--maxreqs)
757 break;
758
759 if (max_poll_time)
760 {
761 gettimeofday (&tv_now, 0);
762
763 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
764 break;
765 }
766 } 1035 }
1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1037 {
1038 *wd = (aio_wd)(long)SvIVX (rv);
1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
1042 }
1043 else
1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1045 }
767 1046
768 if (nreqs <= max_outstanding) 1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
1049}
1050
1051ecb_noinline
1052static void
1053req_set_path1 (aio_req req, SV *path)
1054{
1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1056}
1057
1058ecb_noinline
1059static void
1060req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1061{
1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1063
1064 switch (SvTYPE (rv))
1065 {
1066 case SVt_PVIO:
1067 case SVt_PVLV:
1068 case SVt_PVGV:
1069 req->type = type_fh;
1070 req->sv1 = newSVsv (fh_or_path);
1071 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
769 break; 1072 break;
770 1073
771 poll_wait (); 1074 default:
772 1075 req->type = type_path;
773 ++maxreqs; 1076 req_set_path1 (req, fh_or_path);
1077 break;
774 } 1078 }
775
776 unblock_sig ();
777 return count;
778}
779
780static void create_pipe ()
781{
782 if (pipe (respipe))
783 croak ("unable to initialize result pipe");
784
785 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
786 croak ("cannot set result pipe to nonblocking mode");
787
788 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
789 croak ("cannot set result pipe to nonblocking mode");
790} 1079}
791 1080
792/*****************************************************************************/ 1081/*****************************************************************************/
793/* work around various missing functions */
794 1082
795#if !HAVE_PREADWRITE 1083static void
796# define pread aio_pread 1084ts_set (struct timespec *ts, NV value)
797# define pwrite aio_pwrite
798
799/*
800 * make our pread/pwrite safe against themselves, but not against
801 * normal read/write by using a mutex. slows down execution a lot,
802 * but that's your problem, not mine.
803 */
804static mutex_t preadwritelock = MUTEX_INIT;
805
806static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
807{ 1085{
808 ssize_t res; 1086 ts->tv_sec = value;
809 off_t ooffset; 1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
810
811 LOCK (preadwritelock);
812 ooffset = lseek (fd, 0, SEEK_CUR);
813 lseek (fd, offset, SEEK_SET);
814 res = read (fd, buf, count);
815 lseek (fd, ooffset, SEEK_SET);
816 UNLOCK (preadwritelock);
817
818 return res;
819} 1088}
820 1089
821static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1090static NV
1091ts_get (const struct timespec *ts)
822{ 1092{
823 ssize_t res; 1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
824 off_t ooffset;
825
826 LOCK (preadwritelock);
827 ooffset = lseek (fd, 0, SEEK_CUR);
828 lseek (fd, offset, SEEK_SET);
829 res = write (fd, buf, count);
830 lseek (fd, offset, SEEK_SET);
831 UNLOCK (preadwritelock);
832
833 return res;
834} 1094}
835#endif
836 1095
837#if !HAVE_FDATASYNC 1096/*****************************************************************************/
838# define fdatasync fsync
839#endif
840 1097
841#if !HAVE_READAHEAD 1098XS(boot_IO__AIO) ecb_cold;
842# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
843 1099
844static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1100MODULE = IO::AIO PACKAGE = IO::AIO
845{
846 dBUF;
847 1101
848 while (count > 0) 1102PROTOTYPES: ENABLE
849 {
850 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
851 1103
852 pread (fd, aio_buf, len, offset); 1104BOOT:
853 offset += len;
854 count -= len;
855 }
856
857 errno = 0;
858}
859
860#endif
861
862#if !HAVE_READDIR_R
863# define readdir_r aio_readdir_r
864
865static mutex_t readdirlock = MUTEX_INIT;
866
867static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
868{ 1105{
869 struct dirent *e; 1106 static const struct {
870 int errorno; 1107 const char *name;
1108 IV iv;
1109 } *civ, const_iv[] = {
1110# define const_niv(name, value) { # name, (IV) value },
1111# define const_iv(name) { # name, (IV) name },
1112# define const_eio(name) { # name, (IV) EIO_ ## name },
871 1113
872 LOCK (readdirlock); 1114 /* you have to re-run ./gendef0 after adding/removing any constants here */
1115 /* the first block can be undef if missing */
1116 const_iv (ENOSYS)
1117 const_iv (EXDEV)
1118 const_iv (EBADR)
873 1119
874 e = readdir (dirp); 1120 /* for lseek */
875 errorno = errno; 1121 const_iv (SEEK_DATA)
1122 const_iv (SEEK_HOLE)
876 1123
877 if (e) 1124 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
878 { 1125 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
879 *res = ent; 1126 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
880 strcpy (ent->d_name, e->d_name); 1127 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
881 } 1128 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
882 else 1129 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
883 *res = 0;
884 1130
885 UNLOCK (readdirlock); 1131 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1132 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
886 1136
887 errno = errorno; 1137 /* the second block will be 0 when missing */
888 return e ? 0 : -1; 1138 const_iv (O_ACCMODE)
889}
890#endif
891 1139
892/* sendfile always needs emulation */ 1140 const_iv (O_RDONLY)
893static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1141 const_iv (O_WRONLY)
894{ 1142 const_iv (O_RDWR)
895 ssize_t res; 1143 const_iv (O_CREAT)
1144 const_iv (O_TRUNC)
1145 const_iv (O_EXCL)
1146 const_iv (O_APPEND)
896 1147
897 if (!count) 1148 const_iv (O_ASYNC)
898 return 0; 1149 const_iv (O_DIRECT)
1150 const_iv (O_NOATIME)
899 1151
900#if HAVE_SENDFILE 1152 const_iv (O_CLOEXEC)
901# if __linux 1153 const_iv (O_NOCTTY)
902 res = sendfile (ofd, ifd, &offset, count); 1154 const_iv (O_NOFOLLOW)
1155 const_iv (O_NONBLOCK)
1156 const_iv (O_EXEC)
1157 const_iv (O_SEARCH)
1158 const_iv (O_DIRECTORY)
1159 const_iv (O_DSYNC)
1160 const_iv (O_RSYNC)
1161 const_iv (O_SYNC)
1162 const_iv (O_PATH)
1163 const_iv (O_TMPFILE)
1164 const_iv (O_TTY_INIT)
903 1165
904# elif __freebsd 1166 const_iv (S_IFIFO)
905 /* 1167 const_iv (S_IFCHR)
906 * Of course, the freebsd sendfile is a dire hack with no thoughts 1168 const_iv (S_IFBLK)
907 * wasted on making it similar to other I/O functions. 1169 const_iv (S_IFLNK)
908 */ 1170 const_iv (S_IFREG)
1171 const_iv (S_IFDIR)
1172 const_iv (S_IFWHT)
1173 const_iv (S_IFSOCK)
1174 const_iv (S_IFMT)
1175
1176 const_iv (ST_RDONLY)
1177 const_iv (ST_NOSUID)
1178 const_iv (ST_NODEV)
1179 const_iv (ST_NOEXEC)
1180 const_iv (ST_SYNCHRONOUS)
1181 const_iv (ST_MANDLOCK)
1182 const_iv (ST_WRITE)
1183 const_iv (ST_APPEND)
1184 const_iv (ST_IMMUTABLE)
1185 const_iv (ST_NOATIME)
1186 const_iv (ST_NODIRATIME)
1187 const_iv (ST_RELATIME)
1188
1189 const_iv (PROT_NONE)
1190 const_iv (PROT_EXEC)
1191 const_iv (PROT_READ)
1192 const_iv (PROT_WRITE)
1193
1194 const_iv (MAP_PRIVATE)
1195 const_iv (MAP_SHARED)
1196 const_iv (MAP_FIXED)
1197 const_iv (MAP_ANONYMOUS)
1198
1199 /* linuxish */
1200 const_iv (MAP_LOCKED)
1201 const_iv (MAP_NORESERVE)
1202 const_iv (MAP_POPULATE)
1203 const_iv (MAP_NONBLOCK)
1204 const_iv (MAP_GROWSDOWN)
1205 const_iv (MAP_32BIT)
1206 const_iv (MAP_HUGETLB)
1207 const_iv (MAP_STACK)
1208 const_iv (MAP_FIXED_NOREPLACE)
1209 const_iv (MAP_SHARED_VALIDATE)
1210 const_iv (MAP_SYNC)
1211 const_iv (MAP_UNINITIALIZED)
1212
1213 const_iv (MREMAP_MAYMOVE)
1214 const_iv (MREMAP_FIXED)
1215
1216 const_iv (MSG_CMSG_CLOEXEC)
1217 const_iv (SOCK_CLOEXEC)
1218
1219 const_iv (F_DUPFD_CLOEXEC)
1220
1221 const_iv (F_ADD_SEALS)
1222 const_iv (F_GET_SEALS)
1223 const_iv (F_SEAL_SEAL)
1224 const_iv (F_SEAL_SHRINK)
1225 const_iv (F_SEAL_GROW)
1226 const_iv (F_SEAL_WRITE)
1227
1228 const_iv (F_OFD_GETLK)
1229 const_iv (F_OFD_SETLK)
1230 const_iv (F_OFD_GETLKW)
1231
1232 const_iv (FIFREEZE)
1233 const_iv (FITHAW)
1234 const_iv (FITRIM)
1235 const_iv (FICLONE)
1236 const_iv (FICLONERANGE)
1237 const_iv (FIDEDUPERANGE)
1238
1239 const_iv (FS_IOC_GETFLAGS)
1240 const_iv (FS_IOC_SETFLAGS)
1241 const_iv (FS_IOC_GETVERSION)
1242 const_iv (FS_IOC_SETVERSION)
1243 const_iv (FS_IOC_FIEMAP)
1244 const_iv (FS_IOC_FSGETXATTR)
1245 const_iv (FS_IOC_FSSETXATTR)
1246 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1247 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1248 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1249
1250 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1251
1252 const_iv (FS_SECRM_FL)
1253 const_iv (FS_UNRM_FL)
1254 const_iv (FS_COMPR_FL)
1255 const_iv (FS_SYNC_FL)
1256 const_iv (FS_IMMUTABLE_FL)
1257 const_iv (FS_APPEND_FL)
1258 const_iv (FS_NODUMP_FL)
1259 const_iv (FS_NOATIME_FL)
1260 const_iv (FS_DIRTY_FL)
1261 const_iv (FS_COMPRBLK_FL)
1262 const_iv (FS_NOCOMP_FL)
1263 const_iv (FS_ENCRYPT_FL)
1264 const_iv (FS_BTREE_FL)
1265 const_iv (FS_INDEX_FL)
1266 const_iv (FS_JOURNAL_DATA_FL)
1267 const_iv (FS_NOTAIL_FL)
1268 const_iv (FS_DIRSYNC_FL)
1269 const_iv (FS_TOPDIR_FL)
1270 const_iv (FS_FL_USER_MODIFIABLE)
1271
1272 const_iv (FS_XFLAG_REALTIME)
1273 const_iv (FS_XFLAG_PREALLOC)
1274 const_iv (FS_XFLAG_IMMUTABLE)
1275 const_iv (FS_XFLAG_APPEND)
1276 const_iv (FS_XFLAG_SYNC)
1277 const_iv (FS_XFLAG_NOATIME)
1278 const_iv (FS_XFLAG_NODUMP)
1279 const_iv (FS_XFLAG_RTINHERIT)
1280 const_iv (FS_XFLAG_PROJINHERIT)
1281 const_iv (FS_XFLAG_NOSYMLINKS)
1282 const_iv (FS_XFLAG_EXTSIZE)
1283 const_iv (FS_XFLAG_EXTSZINHERIT)
1284 const_iv (FS_XFLAG_NODEFRAG)
1285 const_iv (FS_XFLAG_FILESTREAM)
1286 const_iv (FS_XFLAG_DAX)
1287 const_iv (FS_XFLAG_HASATTR)
1288
1289 const_iv (FIEMAP_FLAG_SYNC)
1290 const_iv (FIEMAP_FLAG_XATTR)
1291 const_iv (FIEMAP_FLAGS_COMPAT)
1292 const_iv (FIEMAP_EXTENT_LAST)
1293 const_iv (FIEMAP_EXTENT_UNKNOWN)
1294 const_iv (FIEMAP_EXTENT_DELALLOC)
1295 const_iv (FIEMAP_EXTENT_ENCODED)
1296 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1297 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1298 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1299 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1300 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1301 const_iv (FIEMAP_EXTENT_MERGED)
1302 const_iv (FIEMAP_EXTENT_SHARED)
1303
1304 const_iv (SPLICE_F_MOVE)
1305 const_iv (SPLICE_F_NONBLOCK)
1306 const_iv (SPLICE_F_MORE)
1307 const_iv (SPLICE_F_GIFT)
1308
1309 const_iv (EFD_CLOEXEC)
1310 const_iv (EFD_NONBLOCK)
1311 const_iv (EFD_SEMAPHORE)
1312
1313 const_iv (MFD_CLOEXEC)
1314 const_iv (MFD_ALLOW_SEALING)
1315 const_iv (MFD_HUGETLB)
1316 const_iv (MFD_HUGETLB_2MB)
1317 const_iv (MFD_HUGETLB_1GB)
1318
1319 const_iv (CLOCK_REALTIME)
1320 const_iv (CLOCK_MONOTONIC)
1321 const_iv (CLOCK_BOOTTIME)
1322 const_iv (CLOCK_REALTIME_ALARM)
1323 const_iv (CLOCK_BOOTTIME_ALARM)
1324
1325 const_iv (TFD_NONBLOCK)
1326 const_iv (TFD_CLOEXEC)
1327
1328 const_iv (TFD_TIMER_ABSTIME)
1329 const_iv (TFD_TIMER_CANCEL_ON_SET)
1330
1331 const_iv (STATX_TYPE)
1332 const_iv (STATX_MODE)
1333 const_iv (STATX_NLINK)
1334 const_iv (STATX_UID)
1335 const_iv (STATX_GID)
1336 const_iv (STATX_ATIME)
1337 const_iv (STATX_MTIME)
1338 const_iv (STATX_CTIME)
1339 const_iv (STATX_INO)
1340 const_iv (STATX_SIZE)
1341 const_iv (STATX_BLOCKS)
1342 const_iv (STATX_BASIC_STATS)
1343 const_iv (STATX_ALL)
1344 const_iv (STATX_BTIME)
1345 const_iv (STATX_ATTR_COMPRESSED)
1346 const_iv (STATX_ATTR_IMMUTABLE)
1347 const_iv (STATX_ATTR_APPEND)
1348 const_iv (STATX_ATTR_NODUMP)
1349 const_iv (STATX_ATTR_ENCRYPTED)
1350 const_iv (STATX_ATTR_AUTOMOUNT)
1351
1352 const_iv (AT_FDCWD)
1353 const_iv (AT_SYMLINK_NOFOLLOW)
1354 const_iv (AT_EACCESS)
1355 const_iv (AT_REMOVEDIR)
1356 const_iv (AT_SYMLINK_FOLLOW)
1357 const_iv (AT_NO_AUTOMOUNT)
1358 const_iv (AT_EMPTY_PATH)
1359 const_iv (AT_STATX_SYNC_TYPE)
1360 const_iv (AT_STATX_AS_STAT)
1361 const_iv (AT_STATX_FORCE_SYNC)
1362 const_iv (AT_STATX_DONT_SYNC)
1363 const_iv (AT_RECURSIVE)
1364
1365 const_iv (OPEN_TREE_CLONE)
1366
1367 const_iv (FSOPEN_CLOEXEC)
1368
1369 const_iv (FSPICK_CLOEXEC)
1370 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1371 const_iv (FSPICK_NO_AUTOMOUNT)
1372 const_iv (FSPICK_EMPTY_PATH)
1373
1374 const_iv (MOVE_MOUNT_F_SYMLINKS)
1375 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1376 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1377 const_iv (MOVE_MOUNT_T_SYMLINKS)
1378 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1379 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1380
1381 /* waitid */
1382 const_iv (P_PID)
1383 const_iv (P_PIDFD)
1384 const_iv (P_PGID)
1385 const_iv (P_ALL)
1386
1387 const_iv (FSCONFIG_SET_FLAG)
1388 const_iv (FSCONFIG_SET_STRING)
1389 const_iv (FSCONFIG_SET_BINARY)
1390 const_iv (FSCONFIG_SET_PATH)
1391 const_iv (FSCONFIG_SET_PATH_EMPTY)
1392 const_iv (FSCONFIG_SET_FD)
1393 const_iv (FSCONFIG_CMD_CREATE)
1394 const_iv (FSCONFIG_CMD_RECONFIGURE)
1395
1396 const_iv (MOUNT_ATTR_RDONLY)
1397 const_iv (MOUNT_ATTR_NOSUID)
1398 const_iv (MOUNT_ATTR_NODEV)
1399 const_iv (MOUNT_ATTR_NOEXEC)
1400 const_iv (MOUNT_ATTR__ATIME)
1401 const_iv (MOUNT_ATTR_RELATIME)
1402 const_iv (MOUNT_ATTR_NOATIME)
1403 const_iv (MOUNT_ATTR_STRICTATIME)
1404 const_iv (MOUNT_ATTR_NODIRATIME)
1405
1406 /* these are libeio constants, and are independent of gendef0 */
1407 const_eio (SEEK_SET)
1408 const_eio (SEEK_CUR)
1409 const_eio (SEEK_END)
1410
1411 const_eio (MCL_FUTURE)
1412 const_eio (MCL_CURRENT)
1413 const_eio (MCL_ONFAULT)
1414
1415 const_eio (MS_ASYNC)
1416 const_eio (MS_INVALIDATE)
1417 const_eio (MS_SYNC)
1418
1419 const_eio (MT_MODIFY)
1420
1421 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1422 const_eio (SYNC_FILE_RANGE_WRITE)
1423 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1424
1425 const_eio (FALLOC_FL_KEEP_SIZE)
1426 const_eio (FALLOC_FL_PUNCH_HOLE)
1427 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1428 const_eio (FALLOC_FL_ZERO_RANGE)
1429 const_eio (FALLOC_FL_INSERT_RANGE)
1430 const_eio (FALLOC_FL_UNSHARE_RANGE)
1431
1432 const_eio (RENAME_NOREPLACE)
1433 const_eio (RENAME_EXCHANGE)
1434 const_eio (RENAME_WHITEOUT)
1435
1436 const_eio (READDIR_DENTS)
1437 const_eio (READDIR_DIRS_FIRST)
1438 const_eio (READDIR_STAT_ORDER)
1439 const_eio (READDIR_FOUND_UNKNOWN)
1440
1441 const_eio (DT_UNKNOWN)
1442 const_eio (DT_FIFO)
1443 const_eio (DT_CHR)
1444 const_eio (DT_DIR)
1445 const_eio (DT_BLK)
1446 const_eio (DT_REG)
1447 const_eio (DT_LNK)
1448 const_eio (DT_SOCK)
1449 const_eio (DT_WHT)
1450 };
1451
1452 aio_stash = gv_stashpv ("IO::AIO" , 1);
1453 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1454 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1455 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1456
1457 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1458 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1459
1460 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1461
1462 /* allocate dummy pipe fd for aio_close */
909 { 1463 {
910 off_t sbytes; 1464 int pipefd [2];
911 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
912 1465
913 if (res < 0 && sbytes) 1466 if (
914 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1467#ifdef _WIN32
915 res = sbytes; 1468 _pipe (pipefd, 1, _O_BINARY) < 0
1469#else
1470 pipe (pipefd) < 0
1471 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1472#endif
1473 || close (pipefd [1]) < 0
1474 )
1475 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1476
1477 close_fd = pipefd [0];
916 } 1478 }
917 1479
918# elif __hpux 1480 reinit ();
919 res = sendfile (ofd, ifd, offset, count, 0, 0);
920
921# elif __solaris
922 {
923 struct sendfilevec vec;
924 size_t sbytes;
925
926 vec.sfv_fd = ifd;
927 vec.sfv_flag = 0;
928 vec.sfv_off = offset;
929 vec.sfv_len = count;
930
931 res = sendfilev (ofd, &vec, 1, &sbytes);
932
933 if (res < 0 && sbytes)
934 res = sbytes;
935 }
936
937# endif
938#else
939 res = -1;
940 errno = ENOSYS;
941#endif
942
943 if (res < 0
944 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
945#if __solaris
946 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
947#endif
948 )
949 )
950 {
951 /* emulate sendfile. this is a major pain in the ass */
952 dBUF;
953
954 res = 0;
955
956 while (count)
957 {
958 ssize_t cnt;
959
960 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
961
962 if (cnt <= 0)
963 {
964 if (cnt && !res) res = -1;
965 break;
966 }
967
968 cnt = write (ofd, aio_buf, cnt);
969
970 if (cnt <= 0)
971 {
972 if (cnt && !res) res = -1;
973 break;
974 }
975
976 offset += cnt;
977 res += cnt;
978 count -= cnt;
979 }
980 }
981
982 return res;
983} 1481}
984 1482
985/* read a full directory */
986static void scandir_ (aio_req req, worker *self)
987{
988 DIR *dirp;
989 union
990 {
991 struct dirent d;
992 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
993 } *u;
994 struct dirent *entp;
995 char *name, *names;
996 int memlen = 4096;
997 int memofs = 0;
998 int res = 0;
999 int errorno;
1000
1001 LOCK (wrklock);
1002 self->dirp = dirp = opendir (req->ptr1);
1003 self->dbuf = u = malloc (sizeof (*u));
1004 req->flags |= FLAG_PTR2_FREE;
1005 req->ptr2 = names = malloc (memlen);
1006 UNLOCK (wrklock);
1007
1008 if (dirp && u && names)
1009 for (;;)
1010 {
1011 errno = 0;
1012 readdir_r (dirp, &u->d, &entp);
1013
1014 if (!entp)
1015 break;
1016
1017 name = entp->d_name;
1018
1019 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1020 {
1021 int len = strlen (name) + 1;
1022
1023 res++;
1024
1025 while (memofs + len > memlen)
1026 {
1027 memlen *= 2;
1028 LOCK (wrklock);
1029 req->ptr2 = names = realloc (names, memlen);
1030 UNLOCK (wrklock);
1031
1032 if (!names)
1033 break;
1034 }
1035
1036 memcpy (names + memofs, name, len);
1037 memofs += len;
1038 }
1039 }
1040
1041 if (errno)
1042 res = -1;
1043
1044 req->result = res;
1045}
1046
1047/*****************************************************************************/
1048
1049static void *aio_proc (void *thr_arg)
1050{
1051 aio_req req;
1052 struct timespec ts;
1053 worker *self = (worker *)thr_arg;
1054
1055 /* try to distribute timeouts somewhat evenly */
1056 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1057 * (1000000000UL / 1024UL);
1058
1059 for (;;)
1060 {
1061 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1062
1063 LOCK (reqlock);
1064
1065 for (;;)
1066 {
1067 self->req = req = reqq_shift (&req_queue);
1068
1069 if (req)
1070 break;
1071
1072 ++idle;
1073
1074 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1075 == ETIMEDOUT)
1076 {
1077 if (idle > max_idle)
1078 {
1079 --idle;
1080 UNLOCK (reqlock);
1081 LOCK (wrklock);
1082 --started;
1083 UNLOCK (wrklock);
1084 goto quit;
1085 }
1086
1087 /* we are allowed to idle, so do so without any timeout */
1088 COND_WAIT (reqwait, reqlock);
1089 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1090 }
1091
1092 --idle;
1093 }
1094
1095 --nready;
1096
1097 UNLOCK (reqlock);
1098
1099 errno = 0; /* strictly unnecessary */
1100
1101 if (!(req->flags & FLAG_CANCELLED))
1102 switch (req->type)
1103 {
1104 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1105 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1106
1107 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1108 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1109
1110 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1111 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1112 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1113
1114 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1115 case REQ_CLOSE: req->result = close (req->int1); break;
1116 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1117 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1118 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124
1125 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126 case REQ_FSYNC: req->result = fsync (req->int1); break;
1127 case REQ_READDIR: scandir_ (req, self); break;
1128
1129 case REQ_BUSY:
1130 {
1131 struct timeval tv;
1132
1133 tv.tv_sec = req->int1;
1134 tv.tv_usec = req->int2;
1135
1136 req->result = select (0, 0, 0, 0, &tv);
1137 }
1138
1139 case REQ_GROUP:
1140 case REQ_NOP:
1141 break;
1142
1143 case REQ_QUIT:
1144 goto quit;
1145
1146 default:
1147 req->result = ENOSYS;
1148 break;
1149 }
1150
1151 req->errorno = errno;
1152
1153 LOCK (reslock);
1154
1155 ++npending;
1156
1157 if (!reqq_push (&res_queue, req))
1158 {
1159 /* write a dummy byte to the pipe so fh becomes ready */
1160 write (respipe [1], &respipe, 1);
1161
1162 /* optionally signal the main thread asynchronously */
1163 if (main_sig)
1164 pthread_kill (main_tid, main_sig);
1165 }
1166
1167 self->req = 0;
1168 worker_clear (self);
1169
1170 UNLOCK (reslock);
1171 }
1172
1173quit:
1174 LOCK (wrklock);
1175 worker_free (self);
1176 UNLOCK (wrklock);
1177
1178 return 0;
1179}
1180
1181/*****************************************************************************/
1182
1183static void atfork_prepare (void)
1184{
1185 LOCK (wrklock);
1186 LOCK (reqlock);
1187 LOCK (reslock);
1188#if !HAVE_PREADWRITE
1189 LOCK (preadwritelock);
1190#endif
1191#if !HAVE_READDIR_R
1192 LOCK (readdirlock);
1193#endif
1194}
1195
1196static void atfork_parent (void)
1197{
1198#if !HAVE_READDIR_R
1199 UNLOCK (readdirlock);
1200#endif
1201#if !HAVE_PREADWRITE
1202 UNLOCK (preadwritelock);
1203#endif
1204 UNLOCK (reslock);
1205 UNLOCK (reqlock);
1206 UNLOCK (wrklock);
1207}
1208
1209static void atfork_child (void)
1210{
1211 aio_req prv;
1212
1213 while (prv = reqq_shift (&req_queue))
1214 req_free (prv);
1215
1216 while (prv = reqq_shift (&res_queue))
1217 req_free (prv);
1218
1219 while (wrk_first.next != &wrk_first)
1220 {
1221 worker *wrk = wrk_first.next;
1222
1223 if (wrk->req)
1224 req_free (wrk->req);
1225
1226 worker_clear (wrk);
1227 worker_free (wrk);
1228 }
1229
1230 started = 0;
1231 idle = 0;
1232 nreqs = 0;
1233 nready = 0;
1234 npending = 0;
1235
1236 close (respipe [0]);
1237 close (respipe [1]);
1238 create_pipe ();
1239
1240 atfork_parent ();
1241}
1242
1243#define dREQ \
1244 aio_req req; \
1245 int req_pri = next_pri; \
1246 next_pri = DEFAULT_PRI + PRI_BIAS; \
1247 \
1248 if (SvOK (callback) && !SvROK (callback)) \
1249 croak ("callback must be undef or of reference type"); \
1250 \
1251 Newz (0, req, 1, aio_cb); \
1252 if (!req) \
1253 croak ("out of memory during aio_req allocation"); \
1254 \
1255 req->callback = newSVsv (callback); \
1256 req->pri = req_pri
1257
1258#define REQ_SEND \
1259 req_send (req); \
1260 \
1261 if (GIMME_V != G_VOID) \
1262 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1263
1264MODULE = IO::AIO PACKAGE = IO::AIO
1265
1266PROTOTYPES: ENABLE
1267
1268BOOT:
1269{
1270 HV *stash = gv_stashpv ("IO::AIO", 1);
1271
1272 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1273 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1274 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1275 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1276 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1277 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1278 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1279
1280 create_pipe ();
1281 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1282}
1283
1284void 1483void
1484reinit ()
1485 PROTOTYPE:
1486
1487void
1285max_poll_reqs (int nreqs) 1488max_poll_reqs (unsigned int nreqs)
1286 PROTOTYPE: $ 1489 PROTOTYPE: $
1287 CODE: 1490 CODE:
1288 max_poll_reqs = nreqs; 1491 eio_set_max_poll_reqs (nreqs);
1289 1492
1290void 1493void
1291max_poll_time (double nseconds) 1494max_poll_time (double nseconds)
1292 PROTOTYPE: $ 1495 PROTOTYPE: $
1293 CODE: 1496 CODE:
1294 max_poll_time = nseconds * AIO_TICKS; 1497 eio_set_max_poll_time (nseconds);
1295 1498
1296void 1499void
1297min_parallel (int nthreads) 1500min_parallel (unsigned int nthreads)
1298 PROTOTYPE: $
1299
1300void
1301max_parallel (int nthreads)
1302 PROTOTYPE: $
1303
1304void
1305max_idle (int nthreads)
1306 PROTOTYPE: $ 1501 PROTOTYPE: $
1307 CODE: 1502 CODE:
1308 set_max_idle (nthreads); 1503 eio_set_min_parallel (nthreads);
1309 1504
1310int 1505void
1311max_outstanding (int maxreqs) 1506max_parallel (unsigned int nthreads)
1312 PROTOTYPE: $ 1507 PROTOTYPE: $
1313 CODE: 1508 CODE:
1314 RETVAL = max_outstanding; 1509 eio_set_max_parallel (nthreads);
1510
1511void
1512max_idle (unsigned int nthreads)
1513 PROTOTYPE: $
1514 CODE:
1515 eio_set_max_idle (nthreads);
1516
1517void
1518idle_timeout (unsigned int seconds)
1519 PROTOTYPE: $
1520 CODE:
1521 eio_set_idle_timeout (seconds);
1522
1523void
1524max_outstanding (unsigned int maxreqs)
1525 PROTOTYPE: $
1526 CODE:
1315 max_outstanding = maxreqs; 1527 max_outstanding = maxreqs;
1316 OUTPUT:
1317 RETVAL
1318 1528
1319void 1529void
1320aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1530aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1321 SV8 * pathname
1322 int flags
1323 int mode
1324 SV * callback
1325 PROTOTYPE: $$$;$
1326 PPCODE: 1531 PPCODE:
1327{ 1532{
1328 dREQ; 1533 dREQ;
1329 1534
1535 req->type = EIO_WD_OPEN;
1536 req_set_path1 (req, pathname);
1537
1538 REQ_SEND;
1539}
1540
1541void
1542aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1543 PPCODE:
1544{
1545 dREQ;
1546
1330 req->type = REQ_OPEN; 1547 req->type = EIO_OPEN;
1331 req->sv1 = newSVsv (pathname); 1548 req_set_path1 (req, pathname);
1332 req->ptr1 = SvPVbyte_nolen (req->sv1);
1333 req->int1 = flags; 1549 req->int1 = flags;
1334 req->mode = mode; 1550 req->int2 = mode;
1335 1551
1336 REQ_SEND; 1552 REQ_SEND;
1337} 1553}
1338 1554
1339void 1555void
1340aio_close (fh,callback=&PL_sv_undef) 1556aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1341 SV * fh
1342 SV * callback
1343 PROTOTYPE: $;$
1344 ALIAS: 1557 ALIAS:
1345 aio_close = REQ_CLOSE
1346 aio_fsync = REQ_FSYNC 1558 aio_fsync = EIO_FSYNC
1347 aio_fdatasync = REQ_FDATASYNC 1559 aio_fdatasync = EIO_FDATASYNC
1560 aio_syncfs = EIO_SYNCFS
1348 PPCODE: 1561 PPCODE:
1349{ 1562{
1563 int fd = s_fileno_croak (fh, 0);
1350 dREQ; 1564 dREQ;
1351 1565
1352 req->type = ix; 1566 req->type = ix;
1353 req->fh = newSVsv (fh); 1567 req->sv1 = newSVsv (fh);
1354 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1568 req->int1 = fd;
1355 1569
1356 REQ_SEND (req); 1570 REQ_SEND;
1357} 1571}
1358 1572
1359void 1573void
1574aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1575 PPCODE:
1576{
1577 int fd = s_fileno_croak (fh, 0);
1578 dREQ;
1579
1580 req->type = EIO_SYNC_FILE_RANGE;
1581 req->sv1 = newSVsv (fh);
1582 req->int1 = fd;
1583 req->offs = offset;
1584 req->size = nbytes;
1585 req->int2 = flags;
1586
1587 REQ_SEND;
1588}
1589
1590void
1591aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1592 PPCODE:
1593{
1594 int fd = s_fileno_croak (fh, 0);
1595 dREQ;
1596
1597 req->type = EIO_FALLOCATE;
1598 req->sv1 = newSVsv (fh);
1599 req->int1 = fd;
1600 req->int2 = mode;
1601 req->offs = offset;
1602 req->size = len;
1603
1604 REQ_SEND;
1605}
1606
1607void
1608aio_close (SV *fh, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 int fd = s_fileno_croak (fh, 0);
1612 dREQ;
1613#if 0
1614 /* partially duplicate logic in s_fileno */
1615 SvGETMAGIC (fh);
1616
1617 if (SvROK (fh))
1618 {
1619 fh = SvRV (fh);
1620 SvGETMAGIC (fh);
1621 }
1622
1623 if (SvTYPE (fh) == SVt_PVGV)
1624 {
1625 /* perl filehandle */
1626 PerlIOUnix_refcnt_inc (fd);
1627 do_close ((GV *)fh, 1);
1628
1629 req->type = EIO_CLOSE;
1630 req->int1 = fd;
1631 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1632 }
1633 else
1634#endif
1635 {
1636 /* fd number */
1637 req->type = EIO_DUP2;
1638 req->int1 = close_fd;
1639 req->sv2 = newSVsv (fh);
1640 req->int2 = fd;
1641 }
1642
1643 REQ_SEND;
1644}
1645
1646void
1647aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1648 PPCODE:
1649{
1650 int fd = s_fileno_croak (fh, 0);
1651 dREQ;
1652
1653 req->type = EIO_SEEK;
1654 req->sv1 = newSVsv (fh);
1655 req->int1 = fd;
1656 req->offs = SvVAL64 (offset);
1657 req->int2 = whence;
1658
1659 REQ_SEND;
1660}
1661
1662void
1360aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1663aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1361 SV * fh
1362 UV offset
1363 UV length
1364 SV8 * data
1365 UV dataoffset
1366 SV * callback
1367 ALIAS: 1664 ALIAS:
1368 aio_read = REQ_READ 1665 aio_read = EIO_READ
1369 aio_write = REQ_WRITE 1666 aio_write = EIO_WRITE
1370 PROTOTYPE: $$$$$;$
1371 PPCODE: 1667 PPCODE:
1372{ 1668{
1373 STRLEN svlen; 1669 STRLEN svlen;
1670 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1374 char *svptr = SvPVbyte (data, svlen); 1671 char *svptr = SvPVbyte (data, svlen);
1375 1672 UV len = SvUV (length);
1376 SvUPGRADE (data, SVt_PV);
1377 SvPOK_on (data);
1378 1673
1379 if (dataoffset < 0) 1674 if (dataoffset < 0)
1380 dataoffset += svlen; 1675 dataoffset += svlen;
1381 1676
1382 if (dataoffset < 0 || dataoffset > svlen) 1677 if (dataoffset < 0 || dataoffset > svlen)
1383 croak ("data offset outside of string"); 1678 croak ("dataoffset outside of data scalar");
1384 1679
1385 if (ix == REQ_WRITE) 1680 if (ix == EIO_WRITE)
1386 { 1681 {
1387 /* write: check length and adjust. */ 1682 /* write: check length and adjust. */
1388 if (length < 0 || length + dataoffset > svlen) 1683 if (!SvOK (length) || len + dataoffset > svlen)
1389 length = svlen - dataoffset; 1684 len = svlen - dataoffset;
1390 } 1685 }
1391 else 1686 else
1392 { 1687 {
1393 /* read: grow scalar as necessary */ 1688 /* read: check type and grow scalar as necessary */
1689 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1394 svptr = SvGROW (data, length + dataoffset + 1); 1690 svptr = sv_grow (data, len + dataoffset + 1);
1691 else if (SvCUR (data) < len + dataoffset)
1692 croak ("length + dataoffset outside of scalar, and cannot grow");
1395 } 1693 }
1396
1397 if (length < 0)
1398 croak ("length must not be negative");
1399 1694
1400 { 1695 {
1401 dREQ; 1696 dREQ;
1402 1697
1403 req->type = ix; 1698 req->type = ix;
1404 req->fh = newSVsv (fh); 1699 req->sv1 = newSVsv (fh);
1405 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1700 req->int1 = fd;
1406 : IoOFP (sv_2io (fh))); 1701 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1407 req->offs = offset;
1408 req->size = length; 1702 req->size = len;
1409 req->sv1 = SvREFCNT_inc (data); 1703 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr1 = (char *)svptr + dataoffset; 1704 req->ptr2 = (char *)svptr + dataoffset;
1411 req->stroffset = dataoffset; 1705 req->stroffset = dataoffset;
1412 1706
1413 if (!SvREADONLY (data)) 1707 if (!SvREADONLY (data))
1414 { 1708 {
1415 SvREADONLY_on (data); 1709 SvREADONLY_on (data);
1416 req->flags |= FLAG_SV1_RO_OFF; 1710 req->flags |= FLAG_SV2_RO_OFF;
1417 } 1711 }
1418 1712
1419 REQ_SEND; 1713 REQ_SEND;
1420 } 1714 }
1421} 1715}
1422 1716
1423void 1717void
1424aio_readlink (path,callback=&PL_sv_undef) 1718aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1425 SV8 * path 1719 ALIAS:
1426 SV * callback 1720 aio_ioctl = EIO_IOCTL
1427 PROTOTYPE: $$;$ 1721 aio_fcntl = EIO_FCNTL
1428 PPCODE: 1722 PPCODE:
1429{ 1723{
1430 SV *data; 1724 int fd = s_fileno_croak (fh, 0);
1725 char *svptr;
1726
1727 if (SvPOK (arg) || !SvNIOK (arg))
1728 {
1729 STRLEN svlen;
1730 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1731#ifdef IOCPARM_LEN
1732 STRLEN need = IOCPARM_LEN (request);
1733#else
1734 STRLEN need = 256;
1735#endif
1736
1737 if (svlen < need)
1738 svptr = SvGROW (arg, need);
1739 }
1740 else
1741 svptr = (char *)SvIV (arg);
1742
1743 {
1744 dREQ;
1745
1746 req->type = ix;
1747 req->sv1 = newSVsv (fh);
1748 req->int1 = fd;
1749 req->int2 = (long)request;
1750 req->sv2 = SvREFCNT_inc (arg);
1751 req->ptr2 = svptr;
1752
1753 REQ_SEND;
1754 }
1755}
1756
1757void
1758aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1759 ALIAS:
1760 aio_readlink = EIO_READLINK
1761 aio_realpath = EIO_REALPATH
1762 PPCODE:
1763{
1431 dREQ; 1764 dREQ;
1432 1765
1433 data = newSV (NAME_MAX);
1434 SvPOK_on (data);
1435
1436 req->type = REQ_READLINK; 1766 req->type = ix;
1437 req->fh = newSVsv (path); 1767 req_set_path1 (req, pathname);
1438 req->ptr2 = SvPVbyte_nolen (req->fh);
1439 req->sv1 = data;
1440 req->ptr1 = SvPVbyte_nolen (data);
1441 1768
1442 REQ_SEND; 1769 REQ_SEND;
1443} 1770}
1444 1771
1445void 1772void
1446aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1773aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1447 SV * out_fh
1448 SV * in_fh
1449 UV in_offset
1450 UV length
1451 SV * callback
1452 PROTOTYPE: $$$$;$
1453 PPCODE: 1774 PPCODE:
1454{ 1775{
1776 int ifd = s_fileno_croak (in_fh , 0);
1777 int ofd = s_fileno_croak (out_fh, 1);
1455 dREQ; 1778 dREQ;
1456 1779
1457 req->type = REQ_SENDFILE; 1780 req->type = EIO_SENDFILE;
1458 req->fh = newSVsv (out_fh); 1781 req->sv1 = newSVsv (out_fh);
1459 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1782 req->int1 = ofd;
1460 req->sv2 = newSVsv (in_fh); 1783 req->sv2 = newSVsv (in_fh);
1461 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1784 req->int2 = ifd;
1462 req->offs = in_offset; 1785 req->offs = in_offset;
1463 req->size = length; 1786 req->size = length;
1464 1787
1465 REQ_SEND; 1788 REQ_SEND;
1466} 1789}
1467 1790
1468void 1791void
1469aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1792aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1470 SV * fh
1471 UV offset
1472 IV length
1473 SV * callback
1474 PROTOTYPE: $$$;$
1475 PPCODE: 1793 PPCODE:
1476{ 1794{
1795 int fd = s_fileno_croak (fh, 0);
1477 dREQ; 1796 dREQ;
1478 1797
1479 req->type = REQ_READAHEAD; 1798 req->type = EIO_READAHEAD;
1480 req->fh = newSVsv (fh); 1799 req->sv1 = newSVsv (fh);
1481 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1800 req->int1 = fd;
1482 req->offs = offset; 1801 req->offs = offset;
1483 req->size = length; 1802 req->size = length;
1484 1803
1485 REQ_SEND; 1804 REQ_SEND;
1486} 1805}
1487 1806
1488void 1807void
1489aio_stat (fh_or_path,callback=&PL_sv_undef) 1808aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1490 SV8 * fh_or_path
1491 SV * callback
1492 ALIAS: 1809 ALIAS:
1493 aio_stat = REQ_STAT 1810 aio_stat = EIO_STAT
1494 aio_lstat = REQ_LSTAT 1811 aio_lstat = EIO_LSTAT
1812 aio_statvfs = EIO_STATVFS
1495 PPCODE: 1813 PPCODE:
1496{ 1814{
1497 dREQ; 1815 dREQ;
1498 1816
1499 req->ptr2 = malloc (sizeof (Stat_t)); 1817 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1500 if (!req->ptr2)
1501 {
1502 req_free (req);
1503 croak ("out of memory during aio_stat statdata allocation");
1504 }
1505
1506 req->flags |= FLAG_PTR2_FREE;
1507
1508 if (SvPOK (fh_or_path))
1509 {
1510 req->type = ix;
1511 req->sv1 = newSVsv (fh_or_path);
1512 req->ptr1 = SvPVbyte_nolen (req->sv1);
1513 }
1514 else
1515 {
1516 req->type = REQ_FSTAT;
1517 req->fh = newSVsv (fh_or_path);
1518 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1519 }
1520 1818
1521 REQ_SEND; 1819 REQ_SEND;
1522} 1820}
1523 1821
1524void 1822void
1823st_xtime ()
1824 ALIAS:
1825 st_atime = 0x01
1826 st_mtime = 0x02
1827 st_ctime = 0x04
1828 st_btime = 0x08
1829 st_xtime = 0x0f
1830 PPCODE:
1831 EXTEND (SP, 4);
1832 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1833 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1834 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1835 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1836
1837void
1838st_xtimensec ()
1839 ALIAS:
1840 st_atimensec = 0x01
1841 st_mtimensec = 0x02
1842 st_ctimensec = 0x04
1843 st_btimensec = 0x08
1844 st_xtimensec = 0x0f
1845 st_btimesec = 0x10
1846 st_gen = 0x20
1847 PPCODE:
1848 EXTEND (SP, 4);
1849 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1850 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1851 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1852 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1853 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1854 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1855
1856UV
1857major (UV dev)
1858 ALIAS:
1859 minor = 1
1860 CODE:
1861 RETVAL = ix ? minor (dev) : major (dev);
1862 OUTPUT:
1863 RETVAL
1864
1865UV
1866makedev (UV maj, UV min)
1867 CODE:
1868 RETVAL = makedev (maj, min);
1869 OUTPUT:
1870 RETVAL
1871
1872void
1873aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1874 PPCODE:
1875{
1876 dREQ;
1877
1878 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1879 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1880 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1881
1882 REQ_SEND;
1883}
1884
1885void
1886aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1887 PPCODE:
1888{
1889 dREQ;
1890
1891 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1892 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1893
1894 REQ_SEND;
1895}
1896
1897void
1898aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1899 PPCODE:
1900{
1901 dREQ;
1902
1903 req->int2 = mode;
1904 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1905
1906 REQ_SEND;
1907}
1908
1909void
1910aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1911 PPCODE:
1912{
1913 dREQ;
1914
1915 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1916 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1917 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1918
1919 REQ_SEND;
1920}
1921
1922void
1923aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1924 PPCODE:
1925{
1926 dREQ;
1927
1928 req->type = EIO_READDIR;
1929 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1930
1931 if (flags & EIO_READDIR_DENTS)
1932 req->int1 |= EIO_READDIR_CUSTOM2;
1933
1934 req_set_path1 (req, pathname);
1935
1936 REQ_SEND;
1937}
1938
1939void
1940aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1941 PPCODE:
1942{
1943 dREQ;
1944
1945 req->type = EIO_MKDIR;
1946 req->int2 = mode;
1947 req_set_path1 (req, pathname);
1948
1949 REQ_SEND;
1950}
1951
1952void
1525aio_unlink (pathname,callback=&PL_sv_undef) 1953aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1526 SV8 * pathname
1527 SV * callback
1528 ALIAS: 1954 ALIAS:
1529 aio_unlink = REQ_UNLINK 1955 aio_unlink = EIO_UNLINK
1530 aio_rmdir = REQ_RMDIR 1956 aio_rmdir = EIO_RMDIR
1531 aio_readdir = REQ_READDIR 1957 aio_readdir = EIO_READDIR
1532 PPCODE: 1958 PPCODE:
1533{ 1959{
1534 dREQ; 1960 dREQ;
1535 1961
1536 req->type = ix; 1962 req->type = ix;
1537 req->sv1 = newSVsv (pathname); 1963 req_set_path1 (req, pathname);
1538 req->ptr1 = SvPVbyte_nolen (req->sv1);
1539 1964
1540 REQ_SEND; 1965 REQ_SEND;
1541} 1966}
1542 1967
1543void 1968void
1544aio_mkdir (pathname,mode,callback=&PL_sv_undef)
1545 SV8 * pathname
1546 UV mode
1547 SV * callback
1548 PPCODE:
1549{
1550 dREQ;
1551
1552 req->type = REQ_MKDIR;
1553 req->sv1 = newSVsv (pathname);
1554 req->ptr1 = SvPVbyte_nolen (req->sv1);
1555 req->mode = mode;
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_link (oldpath,newpath,callback=&PL_sv_undef) 1969aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1562 SV8 * oldpath
1563 SV8 * newpath
1564 SV * callback
1565 ALIAS: 1970 ALIAS:
1566 aio_link = REQ_LINK 1971 aio_link = EIO_LINK
1567 aio_symlink = REQ_SYMLINK 1972 aio_symlink = EIO_SYMLINK
1568 aio_rename = REQ_RENAME 1973 aio_rename = EIO_RENAME
1569 PPCODE: 1974 PPCODE:
1570{ 1975{
1976 eio_wd wd2 = 0;
1571 dREQ; 1977 dREQ;
1572 1978
1573 req->type = ix; 1979 req->type = ix;
1574 req->fh = newSVsv (oldpath); 1980 req_set_path1 (req, oldpath);
1575 req->ptr2 = SvPVbyte_nolen (req->fh); 1981 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1576 req->sv1 = newSVsv (newpath); 1982 req->int3 = (long)wd2;
1577 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 1983
1579 REQ_SEND; 1984 REQ_SEND;
1580} 1985}
1581 1986
1582void 1987void
1583aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1988aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1584 SV8 * pathname
1585 UV mode
1586 UV dev
1587 SV * callback
1588 PPCODE: 1989 PPCODE:
1589{ 1990{
1991 eio_wd wd2 = 0;
1590 dREQ; 1992 dREQ;
1591 1993
1592 req->type = REQ_MKNOD; 1994 req->type = EIO_RENAME;
1593 req->sv1 = newSVsv (pathname); 1995 req_set_path1 (req, oldpath);
1594 req->ptr1 = SvPVbyte_nolen (req->sv1); 1996 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1595 req->mode = (mode_t)mode; 1997 req->int2 = flags;
1596 req->offs = dev; 1998 req->int3 = (long)wd2;
1597 1999
1598 REQ_SEND; 2000 REQ_SEND;
1599} 2001}
1600 2002
1601void 2003void
1602aio_busy (delay,callback=&PL_sv_undef) 2004aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1603 double delay
1604 SV * callback
1605 PPCODE: 2005 PPCODE:
1606{ 2006{
1607 dREQ; 2007 dREQ;
1608 2008
1609 req->type = REQ_BUSY; 2009 req->type = EIO_MKNOD;
1610 req->int1 = delay < 0. ? 0 : delay; 2010 req->int2 = (mode_t)mode;
1611 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 2011 req->offs = dev;
1612 2012 req_set_path1 (req, pathname);
2013
1613 REQ_SEND; 2014 REQ_SEND;
1614} 2015}
1615 2016
1616void 2017void
1617aio_group (callback=&PL_sv_undef) 2018aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1618 SV * callback 2019 ALIAS:
1619 PROTOTYPE: ;$ 2020 aio_mtouch = EIO_MTOUCH
2021 aio_msync = EIO_MSYNC
1620 PPCODE: 2022 PPCODE:
1621{ 2023{
2024 STRLEN svlen;
2025 char *svptr = SvPVbyte (data, svlen);
2026 UV len = SvUV (length);
2027
2028 if (flags < 0)
2029 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2030
2031 if (offset < 0)
2032 offset += svlen;
2033
2034 if (offset < 0 || offset > svlen)
2035 croak ("offset outside of scalar");
2036
2037 if (!SvOK (length) || len + offset > svlen)
2038 len = svlen - offset;
2039
2040 {
2041 dREQ;
2042
2043 req->type = ix;
2044 req->sv2 = SvREFCNT_inc (data);
2045 req->ptr2 = (char *)svptr + offset;
2046 req->size = len;
2047 req->int1 = flags;
2048
2049 REQ_SEND;
2050 }
2051}
2052
2053void
2054aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2055 PPCODE:
2056{
2057 STRLEN svlen;
2058 char *svptr = SvPVbyte (data, svlen);
2059 UV len = SvUV (length);
2060
2061 if (offset < 0)
2062 offset += svlen;
2063
2064 if (offset < 0 || offset > svlen)
2065 croak ("offset outside of scalar");
2066
2067 if (!SvOK (length) || len + offset > svlen)
2068 len = svlen - offset;
2069
2070 {
2071 dREQ;
2072
2073 req->type = EIO_MLOCK;
2074 req->sv2 = SvREFCNT_inc (data);
2075 req->ptr2 = (char *)svptr + offset;
2076 req->size = len;
2077
2078 REQ_SEND;
2079 }
2080}
2081
2082void
2083aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2084 PPCODE:
2085{
2086 dREQ;
2087
2088 req->type = EIO_MLOCKALL;
2089 req->int1 = flags;
2090
2091 REQ_SEND;
2092}
2093
2094void
2095aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2096 PPCODE:
2097{
2098 int fd = s_fileno_croak (fh, 0);
1622 dREQ; 2099 dREQ;
1623 2100
1624 req->type = REQ_GROUP; 2101 req->type = EIO_CUSTOM;
2102 req->sv1 = newSVsv (fh);
2103 req->int1 = fd;
1625 2104
1626 req_send (req); 2105 req->feed = fiemap;
1627 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2106#if HAVE_FIEMAP
1628} 2107 /* keep our fingers crossed that the next two types are 64 bit */
2108 req->offs = start;
2109 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2110 req->int2 = flags;
2111 req->int3 = SvOK (count) ? SvIV (count) : -1;
2112#endif
1629 2113
2114 REQ_SEND;
2115}
2116
1630void 2117void
1631aio_nop (callback=&PL_sv_undef) 2118aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1632 SV * callback 2119 PPCODE:
2120{
2121 char *svptr = 0;
2122
2123 sv_clear_foreign (data);
2124
2125 if (length) /* known length, directly read into scalar */
2126 {
2127 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2128 svptr = sv_grow (data, length + 1);
2129 else if (SvCUR (data) < length)
2130 croak ("length outside of scalar, and cannot grow");
2131 else
2132 svptr = SvPVbyte_nolen (data);
2133 }
2134
2135 {
2136 dREQ;
2137
2138 req->type = EIO_SLURP;
2139 req_set_path1 (req, pathname);
2140 req->offs = offset;
2141 req->size = length;
2142 req->sv2 = SvREFCNT_inc (data);
2143 req->ptr2 = svptr;
2144
2145 if (!SvREADONLY (data))
2146 {
2147 SvREADONLY_on (data);
2148 req->flags |= FLAG_SV2_RO_OFF;
2149 }
2150
2151 REQ_SEND;
2152 }
2153}
2154
2155void
2156aio_busy (double delay, SV *callback = &PL_sv_undef)
1633 PPCODE: 2157 PPCODE:
1634{ 2158{
1635 dREQ; 2159 dREQ;
1636 2160
1637 req->type = REQ_NOP; 2161 req->type = EIO_BUSY;
2162 req->nv1 = delay < 0. ? 0. : delay;
1638 2163
1639 REQ_SEND; 2164 REQ_SEND;
1640} 2165}
1641 2166
2167void
2168aio_group (SV *callback = &PL_sv_undef)
2169 PPCODE:
2170{
2171 dREQ;
2172
2173 req->type = EIO_GROUP;
2174
2175 PUTBACK;
2176 req_submit (req);
2177 SPAGAIN;
2178
2179 XPUSHs (req_sv (req, aio_grp_stash));
2180}
2181
2182void
2183aio_nop (SV *callback = &PL_sv_undef)
2184 ALIAS:
2185 aio_nop = EIO_NOP
2186 aio_sync = EIO_SYNC
2187 PPCODE:
2188{
2189 dREQ;
2190
2191 req->type = ix;
2192
2193 REQ_SEND;
2194}
2195
1642int 2196int
1643aioreq_pri (int pri = 0) 2197aioreq_pri (int pri = NO_INIT)
1644 PROTOTYPE: ;$
1645 CODE: 2198 CODE:
1646 RETVAL = next_pri - PRI_BIAS; 2199 RETVAL = next_pri;
1647 if (items > 0) 2200 if (items > 0)
1648 { 2201 {
1649 if (pri < PRI_MIN) pri = PRI_MIN; 2202 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1650 if (pri > PRI_MAX) pri = PRI_MAX; 2203 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1651 next_pri = pri + PRI_BIAS; 2204 next_pri = pri;
1652 } 2205 }
1653 OUTPUT: 2206 OUTPUT:
1654 RETVAL 2207 RETVAL
1655 2208
1656void 2209void
1657aioreq_nice (int nice = 0) 2210aioreq_nice (int nice = 0)
1658 CODE: 2211 CODE:
1659 nice = next_pri - nice; 2212 nice = next_pri - nice;
1660 if (nice < PRI_MIN) nice = PRI_MIN; 2213 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1661 if (nice > PRI_MAX) nice = PRI_MAX; 2214 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1662 next_pri = nice + PRI_BIAS; 2215 next_pri = nice;
1663 2216
1664void 2217void
1665flush () 2218flush ()
1666 PROTOTYPE:
1667 CODE: 2219 CODE:
1668 while (nreqs) 2220 while (eio_nreqs ())
1669 { 2221 {
1670 poll_wait (); 2222 poll_wait ();
1671 poll_cb (); 2223 poll_cb ();
1672 } 2224 }
1673 2225
1674int 2226int
1675poll() 2227poll ()
1676 PROTOTYPE:
1677 CODE: 2228 CODE:
1678 poll_wait (); 2229 poll_wait ();
1679 RETVAL = poll_cb (); 2230 RETVAL = poll_cb ();
1680 OUTPUT: 2231 OUTPUT:
1681 RETVAL 2232 RETVAL
1682 2233
1683int 2234int
1684poll_fileno() 2235poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 2236 CODE:
1687 RETVAL = respipe [0]; 2237 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 2238 OUTPUT:
1689 RETVAL 2239 RETVAL
1690 2240
1691int 2241int
1692poll_cb(...) 2242poll_cb (...)
1693 PROTOTYPE: 2243 PROTOTYPE:
1694 CODE: 2244 CODE:
1695 RETVAL = poll_cb (); 2245 RETVAL = poll_cb ();
1696 OUTPUT: 2246 OUTPUT:
1697 RETVAL 2247 RETVAL
1698 2248
1699void 2249void
1700poll_wait() 2250poll_wait ()
2251 CODE:
2252 poll_wait ();
2253
2254int
2255nreqs ()
2256 CODE:
2257 RETVAL = eio_nreqs ();
2258 OUTPUT:
2259 RETVAL
2260
2261int
2262nready ()
2263 CODE:
2264 RETVAL = eio_nready ();
2265 OUTPUT:
2266 RETVAL
2267
2268int
2269npending ()
2270 CODE:
2271 RETVAL = eio_npending ();
2272 OUTPUT:
2273 RETVAL
2274
2275int
2276nthreads ()
2277 CODE:
2278 RETVAL = eio_nthreads ();
2279 OUTPUT:
2280 RETVAL
2281
2282int
2283fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2284 CODE:
2285 RETVAL = posix_fadvise (fh, offset, length, advice);
2286 OUTPUT:
2287 RETVAL
2288
2289IV
2290sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2291 CODE:
2292 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2293 OUTPUT:
2294 RETVAL
2295
2296void
2297mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2298 PPCODE:
2299 sv_clear_foreign (scalar);
2300{
2301 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2302 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2303 if (addr == (void *)-1)
2304 XSRETURN_NO;
2305
2306 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2307
2308 if (!(prot & PROT_WRITE))
2309 SvREADONLY_on (scalar);
2310
2311 XSRETURN_YES;
2312}
2313
2314void
2315munmap (SV *scalar)
2316 CODE:
2317 sv_clear_foreign (scalar);
2318
2319SV *
2320mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2321 CODE:
2322{
2323 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2324 void *new;
2325
2326 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2327 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2328
2329 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2330
2331 RETVAL = &PL_sv_no;
2332
2333 if (new != (void *)-1)
2334 {
2335 RETVAL = new == (void *)mg->mg_ptr
2336 ? newSVpvn ("0 but true", 10)
2337 : &PL_sv_yes;
2338
2339 mg->mg_ptr = (char *)new;
2340 mg->mg_obj = (SV *)new_length;
2341
2342 SvPVX (scalar) = mg->mg_ptr;
2343 SvCUR_set (scalar, new_length);
2344 }
2345}
2346 OUTPUT:
2347 RETVAL
2348
2349int
2350madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2351 ALIAS:
2352 mprotect = 1
2353 CODE:
2354{
2355 STRLEN svlen;
2356 void *addr = SvPVbyte (scalar, svlen);
2357 STRLEN len = SvUV (length);
2358
2359 if (offset < 0)
2360 offset += svlen;
2361
2362 if (offset < 0 || offset > svlen)
2363 croak ("offset outside of scalar");
2364
2365 if (!SvOK (length) || len + offset > svlen)
2366 len = svlen - offset;
2367
2368 addr = (void *)(((intptr_t)addr) + offset);
2369 eio_page_align (&addr, &len);
2370
2371 switch (ix)
2372 {
2373 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2374 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2375 }
2376}
2377 OUTPUT:
2378 RETVAL
2379
2380int
2381munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2382 CODE:
2383{
2384 STRLEN svlen;
2385 void *addr = SvPVbyte (scalar, svlen);
2386 size_t len = SvUV (length);
2387
2388 if (offset < 0)
2389 offset += svlen;
2390
2391 if (offset < 0 || offset > svlen)
2392 croak ("offset outside of scalar");
2393
2394 if (!SvOK (length) || len + offset > svlen)
2395 len = svlen - offset;
2396
2397 addr = (void *)(((intptr_t)addr) + offset);
2398 eio_page_align (&addr, &len);
2399#if _POSIX_MEMLOCK_RANGE
2400 RETVAL = munlock (addr, len);
2401#else
2402 RETVAL = EIO_ENOSYS ();
2403#endif
2404}
2405 OUTPUT:
2406 RETVAL
2407
2408int
2409mlockall (int flags)
2410 PROTOTYPE: $;
2411 CODE:
2412 RETVAL = eio_mlockall_sync (flags);
2413 OUTPUT:
2414 RETVAL
2415
2416int
2417munlockall ()
2418 CODE:
2419#if _POSIX_MEMLOCK
2420 munlockall ();
2421#else
2422 RETVAL = EIO_ENOSYS ();
2423#endif
2424 OUTPUT:
2425 RETVAL
2426
2427int
2428statx (SV8 *pathname, int flags, UV mask)
2429 CODE:
2430{
2431 /* undocumented, and might go away, and anyway, should use eio_statx */
2432 SV *wdsv = 0;
2433 SV *pathsv = 0;
2434 eio_wd wd = EIO_CWD;
2435 void *ptr;
2436 int res;
2437
2438 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2439 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2440
2441 SvREFCNT_dec (pathsv);
2442 SvREFCNT_dec (wdsv);
2443}
2444 OUTPUT:
2445 RETVAL
2446
2447U32
2448stx_mode ()
1701 PROTOTYPE: 2449 PROTOTYPE:
1702 CODE: 2450 CODE:
1703 poll_wait (); 2451#if HAVE_STATX
2452 RETVAL = stx.stx_mode;
2453#else
2454 XSRETURN_UNDEF;
2455#endif
2456 OUTPUT:
2457 RETVAL
1704 2458
2459#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2460#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2461#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2462#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2463#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2464#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2465#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2466#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2467#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2468#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2469#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2470#define STATX_OFFSET_size statx_offsetof (stx_size)
2471#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2472#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2473#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2474#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2475#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2476#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2477
2478U32
2479stx_mask ()
2480 PROTOTYPE:
2481 ALIAS:
2482 stx_mask = STATX_OFFSET_mask
2483 stx_blksize = STATX_OFFSET_blksize
2484 stx_nlink = STATX_OFFSET_nlink
2485 stx_uid = STATX_OFFSET_uid
2486 stx_gid = STATX_OFFSET_gid
2487 stx_rdev_major = STATX_OFFSET_rdev_major
2488 stx_rdev_minor = STATX_OFFSET_rdev_minor
2489 stx_dev_major = STATX_OFFSET_dev_major
2490 stx_dev_minor = STATX_OFFSET_dev_minor
2491 CODE:
2492#if HAVE_STATX
2493 RETVAL = *(__u32 *)((char *)&stx + ix);
2494#else
2495 XSRETURN_UNDEF;
2496#endif
2497 OUTPUT:
2498 RETVAL
2499
2500VAL64
2501stx_attributes ()
2502 PROTOTYPE:
2503 ALIAS:
2504 stx_attributes = STATX_OFFSET_attributes
2505 stx_ino = STATX_OFFSET_ino
2506 stx_size = STATX_OFFSET_size
2507 stx_blocks = STATX_OFFSET_blocks
2508 stx_attributes_mask = STATX_OFFSET_attributes_mask
2509 CODE:
2510#if HAVE_STATX
2511 RETVAL = *(__u64 *)((char *)&stx + ix);
2512#else
2513 XSRETURN_UNDEF;
2514#endif
2515 OUTPUT:
2516 RETVAL
2517
2518NV
2519stx_atime ()
2520 PROTOTYPE:
2521 ALIAS:
2522 stx_atime = STATX_OFFSET_atime
2523 stx_btime = STATX_OFFSET_btime
2524 stx_ctime = STATX_OFFSET_ctime
2525 stx_mtime = STATX_OFFSET_mtime
2526 CODE:
2527#if HAVE_STATX
2528 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2529 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2530#else
2531 XSRETURN_UNDEF;
2532#endif
2533 OUTPUT:
2534 RETVAL
2535
2536VAL64
2537stx_atimesec ()
2538 PROTOTYPE:
2539 ALIAS:
2540 stx_atimesec = STATX_OFFSET_atime
2541 stx_btimesec = STATX_OFFSET_btime
2542 stx_ctimesec = STATX_OFFSET_ctime
2543 stx_mtimesec = STATX_OFFSET_mtime
2544 CODE:
2545#if HAVE_STATX
2546 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2547 RETVAL = ts->tv_sec;
2548#else
2549 XSRETURN_UNDEF;
2550#endif
2551 OUTPUT:
2552 RETVAL
2553
2554U32
2555stx_atimensec ()
2556 PROTOTYPE:
2557 ALIAS:
2558 stx_atimensec = STATX_OFFSET_atime
2559 stx_btimensec = STATX_OFFSET_btime
2560 stx_ctimensec = STATX_OFFSET_ctime
2561 stx_mtimensec = STATX_OFFSET_mtime
2562 CODE:
2563#if HAVE_STATX
2564 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2565 RETVAL = ts->tv_nsec;
2566#else
2567 RETVAL = 0;
2568#endif
2569 OUTPUT:
2570 RETVAL
2571
1705void 2572void
1706setsig (int signum = SIGIO) 2573accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2574 PPCODE:
2575{
2576 SV *retval;
2577#if HAVE_ACCEPT4
2578 socklen_t salen_ = salen ? salen + 1 : 0;
2579
2580 if (salen)
2581 {
2582 sv_upgrade (sockaddr, SVt_PV);
2583 sv_grow (sockaddr, salen_);
2584 }
2585
2586 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2587
2588 retval = newmortalFH (res, O_RDWR);
2589
2590 if (res >= 0 && salen > 0)
2591 {
2592 if (salen_ > salen + 1)
2593 salen_ = salen + 1;
2594
2595 SvPOK_only (sockaddr);
2596 SvCUR_set (sockaddr, salen_);
2597 }
2598#else
2599 errno = ENOSYS;
2600 retval = &PL_sv_undef;
2601#endif
2602 XPUSHs (retval);
2603}
2604
2605ssize_t
2606splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2607 CODE:
2608{
2609#if HAVE_LINUX_SPLICE
2610 loff_t off_in_, off_out_;
2611 RETVAL = splice (
2612 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2613 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2614 length, flags
2615 );
2616#else
2617 RETVAL = EIO_ENOSYS ();
2618#endif
2619}
2620 OUTPUT:
2621 RETVAL
2622
2623ssize_t
2624tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2625 CODE:
2626#if HAVE_LINUX_SPLICE
2627 RETVAL = tee (rfh, wfh, length, flags);
2628#else
2629 RETVAL = EIO_ENOSYS ();
2630#endif
2631 OUTPUT:
2632 RETVAL
2633
2634int
2635pipesize (aio_rfd rfh, int new_size = -1)
2636 PROTOTYPE: $;$
2637 CODE:
2638#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2639 if (new_size >= 0)
2640 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2641 else
2642 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2643#else
2644 errno = ENOSYS;
2645 RETVAL = -1;
2646#endif
2647 OUTPUT:
2648 RETVAL
2649
2650void
2651pipe2 (int flags = 0)
1707 PROTOTYPE: ;$ 2652 PROTOTYPE: ;$
1708 CODE:
1709{
1710 if (block_sig_level)
1711 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1712
1713 LOCK (reslock);
1714 main_tid = pthread_self ();
1715 main_sig = signum;
1716 UNLOCK (reslock);
1717
1718 if (main_sig && npending)
1719 pthread_kill (main_tid, main_sig);
1720}
1721
1722void
1723aio_block (SV *cb)
1724 PROTOTYPE: &
1725 PPCODE: 2653 PPCODE:
1726{ 2654{
1727 int count; 2655 int fd[2];
2656 int res;
1728 2657
1729 block_sig (); 2658 if (flags)
1730 PUSHMARK (SP); 2659#if HAVE_PIPE2
1731 PUTBACK; 2660 res = pipe2 (fd, flags);
1732 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2661#else
1733 SPAGAIN; 2662 res = (errno = ENOSYS, -1);
1734 unblock_sig (); 2663#endif
2664 else
2665 res = pipe (fd);
1735 2666
1736 if (SvTRUE (ERRSV)) 2667 if (!res)
1737 croak (0); 2668 {
2669 EXTEND (SP, 2);
2670 PUSHs (newmortalFH (fd[0], O_RDONLY));
2671 PUSHs (newmortalFH (fd[1], O_WRONLY));
2672 }
2673}
1738 2674
1739 XSRETURN (count); 2675void
2676pidfd_open (int pid, unsigned int flags = 0)
2677 PPCODE:
2678{
2679 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2680 int fd = syscall (SYS_pidfd_open, pid, flags);
2681 XPUSHs (newmortalFH (fd, O_RDWR));
1740} 2682}
1741 2683
1742int 2684int
1743nreqs() 2685pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1744 PROTOTYPE: 2686 PPCODE:
2687{
2688 int res;
2689#if HAVE_SIGINFO_T
2690 siginfo_t si = { 0 };
2691
2692 if (SvOK (siginfo))
2693 {
2694 HV *hv;
2695 SV **svp;
2696
2697 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2698 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2699
2700 hv = (HV *)SvRV (siginfo);
2701
2702 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2703 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2704 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2705 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2706 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2707 }
2708
2709 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2710 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2711#else
2712 res = (errno = ENOSYS, -1);
2713#endif
2714
2715 XPUSHs (sv_2mortal (newSViv (res)));
2716}
2717
2718void
2719pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2720 PPCODE:
2721{
2722 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2723 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2724 XPUSHs (newmortalFH (fd, O_RDWR));
2725}
2726
2727void
2728eventfd (unsigned int initval = 0, int flags = 0)
2729 PPCODE:
2730{
2731 int fd;
2732#if HAVE_EVENTFD
2733 fd = eventfd (initval, flags);
2734#else
2735 fd = (errno = ENOSYS, -1);
2736#endif
2737
2738 XPUSHs (newmortalFH (fd, O_RDWR));
2739}
2740
2741void
2742timerfd_create (int clockid, int flags = 0)
2743 PPCODE:
2744{
2745 int fd;
2746#if HAVE_TIMERFD
2747 fd = timerfd_create (clockid, flags);
2748#else
2749 fd = (errno = ENOSYS, -1);
2750#endif
2751
2752 XPUSHs (newmortalFH (fd, O_RDWR));
2753}
2754
2755void
2756timerfd_settime (SV *fh, int flags, NV interval, NV value)
2757 PPCODE:
2758{
2759 int fd = s_fileno_croak (fh, 0);
2760#if HAVE_TIMERFD
2761 int res;
2762 struct itimerspec its, ots;
2763
2764 ts_set (&its.it_interval, interval);
2765 ts_set (&its.it_value , value);
2766 res = timerfd_settime (fd, flags, &its, &ots);
2767
2768 if (!res)
2769 {
2770 EXTEND (SP, 2);
2771 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2772 PUSHs (newSVnv (ts_get (&ots.it_value)));
2773 }
2774#else
2775 errno = ENOSYS;
2776#endif
2777}
2778
2779void
2780timerfd_gettime (SV *fh)
2781 PPCODE:
2782{
2783 int fd = s_fileno_croak (fh, 0);
2784#if HAVE_TIMERFD
2785 int res;
2786 struct itimerspec ots;
2787 res = timerfd_gettime (fd, &ots);
2788
2789 if (!res)
2790 {
2791 EXTEND (SP, 2);
2792 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2793 PUSHs (newSVnv (ts_get (&ots.it_value)));
2794 }
2795#else
2796 errno = ENOSYS;
2797#endif
2798}
2799
2800void
2801memfd_create (SV8 *pathname, int flags = 0)
2802 PPCODE:
2803{
2804 int fd;
2805#if HAVE_MEMFD_CREATE
2806 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2807#else
2808 fd = (errno = ENOSYS, -1);
2809#endif
2810
2811 XPUSHs (newmortalFH (fd, O_RDWR));
2812}
2813
2814UV
2815get_fdlimit ()
1745 CODE: 2816 CODE:
1746 RETVAL = nreqs; 2817#if HAVE_RLIMITS
2818 struct rlimit rl;
2819 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2820 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2821#endif
2822 XSRETURN_UNDEF;
1747 OUTPUT: 2823 OUTPUT:
1748 RETVAL 2824 RETVAL
1749 2825
1750int 2826void
1751nready() 2827min_fdlimit (UV limit = 0x7fffffffU)
1752 PROTOTYPE:
1753 CODE: 2828 CODE:
1754 RETVAL = get_nready (); 2829{
1755 OUTPUT: 2830#if HAVE_RLIMITS
1756 RETVAL 2831 struct rlimit rl;
2832 rlim_t orig_rlim_max;
2833 UV bit;
1757 2834
1758int 2835 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1759npending() 2836 goto fail;
1760 PROTOTYPE: 2837
2838 if (rl.rlim_cur == RLIM_INFINITY)
2839 XSRETURN_YES;
2840
2841 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2842
2843 if (rl.rlim_cur < limit)
2844 {
2845 rl.rlim_cur = limit;
2846
2847 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2848 rl.rlim_max = rl.rlim_cur;
2849 }
2850
2851 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2852 XSRETURN_YES;
2853
2854 if (errno == EPERM)
2855 {
2856 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2857 /* our limit overflows a system-wide limit */
2858 /* try an adaptive algorithm, but do not lower the hardlimit */
2859 rl.rlim_max = 0;
2860 for (bit = 0x40000000U; bit; bit >>= 1)
2861 {
2862 rl.rlim_max |= bit;
2863 rl.rlim_cur = rl.rlim_max;
2864
2865 /* never decrease the hard limit */
2866 if (rl.rlim_max < orig_rlim_max)
2867 break;
2868
2869 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2870 rl.rlim_max &= ~bit; /* too high, remove bit again */
2871 }
2872
2873 /* now, raise the soft limit to the max permitted */
2874 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2875 {
2876 rl.rlim_cur = rl.rlim_max;
2877 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2878 errno = EPERM;
2879 }
2880 }
2881#endif
2882 fail:
2883 XSRETURN_UNDEF;
2884}
2885
2886void _on_next_submit (SV *cb)
1761 CODE: 2887 CODE:
1762 RETVAL = get_npending (); 2888 SvREFCNT_dec (on_next_submit);
1763 OUTPUT: 2889 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1764 RETVAL
1765 2890
1766int 2891PROTOTYPES: DISABLE
1767nthreads() 2892
1768 PROTOTYPE: 2893MODULE = IO::AIO PACKAGE = IO::AIO::WD
2894
2895BOOT:
2896{
2897 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2898 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2899}
2900
2901void
2902DESTROY (SV *self)
1769 CODE: 2903 CODE:
1770 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2904{
1771 RETVAL = started; 2905 aio_wd wd = SvAIO_WD (self);
1772 if (WORDACCESS_UNSAFE) UNLOCK (wrklock); 2906#if HAVE_AT
1773 OUTPUT: 2907 {
1774 RETVAL 2908 SV *callback = &PL_sv_undef;
1775 2909 dREQ; /* clobbers next_pri :/ */
1776PROTOTYPES: DISABLE 2910 next_pri = req->pri; /* restore next_pri */
2911 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2912 req->type = EIO_WD_CLOSE;
2913 req->wd = wd;
2914 REQ_SEND;
2915 }
2916#else
2917 eio_wd_close_sync (wd);
2918#endif
2919}
1777 2920
1778MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2921MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1779 2922
1780void 2923void
1781cancel (aio_req_ornot req) 2924cancel (aio_req_ornot req)
1782 CODE: 2925 CODE:
1783 req_cancel (req); 2926 eio_cancel (req);
1784 2927
1785void 2928void
1786cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2929cb (aio_req_ornot req, SV *callback = NO_INIT)
1787 CODE: 2930 PPCODE:
2931{
2932 if (GIMME_V != G_VOID)
2933 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2934
2935 if (items > 1)
2936 {
2937 SV *cb_cv = get_cb (callback);
2938
1788 SvREFCNT_dec (req->callback); 2939 SvREFCNT_dec (req->callback);
1789 req->callback = newSVsv (callback); 2940 req->callback = SvREFCNT_inc (cb_cv);
2941 }
2942}
1790 2943
1791MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2944MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1792 2945
1793void 2946void
1794add (aio_req grp, ...) 2947add (aio_req grp, ...)
1795 PPCODE: 2948 PPCODE:
1796{ 2949{
1797 int i; 2950 int i;
1798 aio_req req;
1799
1800 if (main_sig && !block_sig_level)
1801 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1802 2951
1803 if (grp->int1 == 2) 2952 if (grp->int1 == 2)
1804 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2953 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1805 2954
1806 for (i = 1; i < items; ++i ) 2955 for (i = 1; i < items; ++i )
1807 { 2956 {
2957 aio_req req;
2958
1808 if (GIMME_V != G_VOID) 2959 if (GIMME_V != G_VOID)
1809 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2960 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1810 2961
1811 req = SvAIO_REQ (ST (i)); 2962 req = SvAIO_REQ (ST (i));
1812 2963
1813 if (req) 2964 if (req)
1814 { 2965 eio_grp_add (grp, req);
1815 ++grp->size;
1816 req->grp = grp;
1817
1818 req->grp_prev = 0;
1819 req->grp_next = grp->grp_first;
1820
1821 if (grp->grp_first)
1822 grp->grp_first->grp_prev = req;
1823
1824 grp->grp_first = req;
1825 }
1826 } 2966 }
1827} 2967}
1828 2968
1829void 2969void
1830cancel_subs (aio_req_ornot req) 2970cancel_subs (aio_req_ornot req)
… …
1839 AV *av; 2979 AV *av;
1840 2980
1841 grp->errorno = errno; 2981 grp->errorno = errno;
1842 2982
1843 av = newAV (); 2983 av = newAV ();
2984 av_extend (av, items - 1);
1844 2985
1845 for (i = 1; i < items; ++i ) 2986 for (i = 1; i < items; ++i )
1846 av_push (av, newSVsv (ST (i))); 2987 av_push (av, newSVsv (ST (i)));
1847 2988
1848 SvREFCNT_dec (grp->sv1); 2989 SvREFCNT_dec (grp->sv1);
… …
1855 grp->errorno = errorno; 2996 grp->errorno = errorno;
1856 2997
1857void 2998void
1858limit (aio_req grp, int limit) 2999limit (aio_req grp, int limit)
1859 CODE: 3000 CODE:
1860 grp->int2 = limit; 3001 eio_grp_limit (grp, limit);
1861 aio_grp_feed (grp);
1862 3002
1863void 3003void
1864feed (aio_req grp, SV *callback=&PL_sv_undef) 3004feed (aio_req grp, SV *callback = &PL_sv_undef)
1865 CODE: 3005 CODE:
1866{ 3006{
1867 SvREFCNT_dec (grp->sv2); 3007 SvREFCNT_dec (grp->sv2);
1868 grp->sv2 = newSVsv (callback); 3008 grp->sv2 = newSVsv (callback);
3009 grp->feed = aio_grp_feed;
1869 3010
1870 if (grp->int2 <= 0) 3011 if (grp->int2 <= 0)
1871 grp->int2 = 2; 3012 grp->int2 = 2;
1872 3013
1873 aio_grp_feed (grp); 3014 eio_grp_limit (grp, grp->int2);
1874} 3015}
1875 3016

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