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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 1.299 by root, Mon Sep 26 10:30:53 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/* perl namespace pollution */
25# if __linux 25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
33#ifdef _WIN32
34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66 #undef utime
67
68 #define EIO_STRUCT_STAT struct _stati64
69 #define EIO_STRUCT_STATI64
70
71#else
72
73 #include <sys/time.h>
26# include <sys/sendfile.h> 74 #include <sys/select.h>
27# elif __freebsd 75 #include <sys/wait.h>
76 #include <unistd.h>
77 #include <utime.h>
78 #include <signal.h>
79
80 #define EIO_STRUCT_STAT Stat_t
81
82#endif
83
84/*****************************************************************************/
85
86#if __GNUC__ >= 3
87# define expect(expr,value) __builtin_expect ((expr),(value))
88#else
89# define expect(expr,value) (expr)
90#endif
91
92#define expect_false(expr) expect ((expr) != 0, 0)
93#define expect_true(expr) expect ((expr) != 0, 1)
94
95/*****************************************************************************/
96
97#include "config.h"
98
99#if HAVE_SYS_MKDEV_H
28# include <sys/socket.h> 100# include <sys/mkdev.h>
101#elif HAVE_SYS_SYSMACROS_H
102# include <sys/sysmacros.h>
103#endif
104
105#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
106# include <sys/mman.h>
107#endif
108
109#if HAVE_SYS_UIO_H
29# include <sys/uio.h> 110# include <sys/uio.h>
30# elif __hpux 111#endif
112
113/* MUST be included before linux/fs.h, as the latter includes
114 * linux/mount.h, which is incompatible to sys/mount.h
115 */
116#if HAVE_SYS_MOUNT_H
31# include <sys/socket.h> 117# include <sys/mount.h>
32# elif __solaris /* not yet */ 118#endif
119
120/* the incompetent fool that created musl keeps __linux__, refuses
121 * to implement any linux standard apis, and also has no way to test
122 * for his broken implementation. don't complain to me if this fails
123 * for you.
124 */
125#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
126# include <linux/fs.h> /* MUST be included after sys/mount.h */
127# ifdef FS_IOC_FIEMAP
128# include <linux/types.h>
129# include <linux/fiemap.h>
130# undef HAVE_FIEMAP
131# define HAVE_FIEMAP 1
132# endif
133#endif
134
135#if HAVE_ST_XTIMENSEC
136# define ATIMENSEC PL_statcache.st_atimensec
137# define MTIMENSEC PL_statcache.st_mtimensec
138# define CTIMENSEC PL_statcache.st_ctimensec
139#elif HAVE_ST_XTIMESPEC
140# define ATIMENSEC PL_statcache.st_atim.tv_nsec
141# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
142# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
143#else
144# define ATIMENSEC 0
145# define MTIMENSEC 0
146# define CTIMENSEC 0
147#endif
148
149#if HAVE_ST_BIRTHTIMENSEC
150# define BTIMESEC PL_statcache.st_birthtime
151# define BTIMENSEC PL_statcache.st_birthtimensec
152#elif HAVE_ST_BIRTHTIMESPEC
153# define BTIMESEC PL_statcache.st_birthtim.tv_sec
154# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
155#else
156# define BTIMESEC 0
157# define BTIMENSEC 0
158#endif
159
160#if HAVE_ST_GEN
161# define ST_GEN PL_statcache.st_gen
162#else
163# define ST_GEN 0
164#endif
165
166#include "schmorp.h"
167
168#if HAVE_EVENTFD
33# include <sys/sendfile.h> 169# include <sys/eventfd.h>
170#endif
171
172#if HAVE_TIMERFD
173# include <sys/timerfd.h>
174#endif
175
176#if HAVE_RLIMITS
177 #include <sys/time.h>
178 #include <sys/resource.h>
179#endif
180
181typedef SV SV8; /* byte-sv, used for argument-checking */
182typedef char *octet_string;
183typedef char *octet_string_ornull;
184typedef int aio_rfd; /* read file desriptor */
185typedef int aio_wfd; /* write file descriptor */
186
187static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
188
189#define EIO_REQ_MEMBERS \
190 SV *callback; \
191 SV *sv1, *sv2; \
192 SV *sv3, *sv4; \
193 STRLEN stroffset; \
194 SV *self;
195
196#define EIO_NO_WRAPPERS 1
197
198#include "libeio/eio.h"
199
200static int req_invoke (eio_req *req);
201#define EIO_FINISH(req) req_invoke (req)
202static void req_destroy (eio_req *grp);
203#define EIO_DESTROY(req) req_destroy (req)
204
205#include "libeio/eio.c"
206
207#if !HAVE_POSIX_FADVISE
208# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
209#endif
210
211#if !HAVE_POSIX_MADVISE
212# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213#endif
214
215#ifndef MAP_ANONYMOUS
216# ifdef MAP_ANON
217# define MAP_ANONYMOUS MAP_ANON
34# else 218# else
35# error sendfile support requested but not available 219# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 220# endif
37#endif 221#endif
38 222
39/* number of seconds after which idle threads exit */ 223#ifndef makedev
40#define IDLE_TIMEOUT 10 224# 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 225#endif
226#ifndef major
227# define major(dev) ((dev) >> 8)
228#endif
229#ifndef minor
230# define minor(dev) ((dev) & 0xff)
231#endif
46 232
47/* buffer size for various temporary buffers */ 233/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
48#define AIO_BUFSIZE 65536 234#ifdef __sun
235# undef PAGESIZE
236#endif
49 237
50#define dBUF \ 238#if PAGESIZE <= 0
51 char *aio_buf; \ 239# define PAGESIZE sysconf (_SC_PAGESIZE)
52 LOCK (wrklock); \ 240#endif
53 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 241
54 UNLOCK (wrklock); \ 242/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
55 if (!aio_buf) \ 243#ifdef __sun
244# undef HAVE_SYSCALL
245#endif
246
247#if HAVE_SYSCALL
248#include <sys/syscall.h>
249#else
250# define syscall(nr,...) (errno = ENOSYS, -1)
251#endif
252
253/*****************************************************************************/
254
255#if !_POSIX_MAPPED_FILES
256# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
257# define munmap(addr,length) EIO_ENOSYS ()
258#endif
259
260#if !_POSIX_MEMORY_PROTECTION
261# define mprotect(addr,len,prot) EIO_ENOSYS ()
262#endif
263
264#if !MREMAP_MAYMOVE
265# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
266#endif
267
268#define FOREIGN_MAGIC PERL_MAGIC_ext
269
270static int ecb_cold
271mmap_free (pTHX_ SV *sv, MAGIC *mg)
272{
273 int old_errno = errno;
274 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
275 errno = old_errno;
276
277 mg->mg_obj = 0; /* just in case */
278
279 SvREADONLY_off (sv);
280
281 if (SvPVX (sv) != mg->mg_ptr)
282 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
283
284 SvCUR_set (sv, 0);
285 SvPVX (sv) = 0;
286 SvOK_off (sv);
287
56 return -1; 288 return 0;
289}
57 290
58typedef SV SV8; /* byte-sv, used for argument-checking */ 291static MGVTBL mmap_vtbl = {
59 292 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}; 293};
73 294
74#define AIO_REQ_KLASS "IO::AIO::REQ" 295static int ecb_cold
75#define AIO_GRP_KLASS "IO::AIO::GRP" 296sysfree_free (pTHX_ SV *sv, MAGIC *mg)
76
77typedef struct aio_cb
78{ 297{
79 struct aio_cb *volatile next; 298 free (mg->mg_ptr);
299 mg->mg_obj = 0; /* just in case */
80 300
81 SV *callback, *fh; 301 SvREADONLY_off (sv);
82 SV *sv1, *sv2;
83 void *ptr1, *ptr2;
84 off_t offs;
85 size_t size;
86 ssize_t result;
87 302
88 STRLEN stroffset; 303 if (SvPVX (sv) != mg->mg_ptr)
89 int type; 304 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
90 int int1, int2;
91 int errorno;
92 mode_t mode; /* open */
93 305
94 unsigned char flags; 306 SvCUR_set (sv, 0);
95 unsigned char pri; 307 SvPVX (sv) = 0;
308 SvOK_off (sv);
96 309
97 SV *self; /* the perl counterpart of this request, if any */ 310 return 0;
98 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 311}
99} aio_cb;
100 312
101enum { 313static MGVTBL sysfree_vtbl = {
102 FLAG_CANCELLED = 0x01, /* request was cancelled */ 314 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}; 315};
106 316
107typedef aio_cb *aio_req; 317/*****************************************************************************/
108typedef aio_cb *aio_req_ornot;
109 318
110enum { 319/* helper: set scalar to foreign ptr with custom free */
111 PRI_MIN = -4, 320ecb_noinline
112 PRI_MAX = 4, 321static void
113 322sv_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{ 323{
127 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 324 sv_force_normal (sv);
128 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
129}
130 325
131static thread_t main_tid; 326 /* we store the length in mg_obj, as namlen is I32 :/ */
132static int main_sig; 327 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
133static int block_sig_level; 328 ->mg_obj = (SV *)length;
134 329
135void block_sig () 330 SvUPGRADE (sv, SVt_PV); /* nop... */
136{
137 sigset_t ss;
138 331
139 if (block_sig_level++) 332 if (SvLEN (sv))
333 Safefree (SvPVX (sv));
334
335 SvPVX (sv) = (char *)addr;
336 SvCUR_set (sv, length);
337 SvLEN_set (sv, 0);
338 SvPOK_only (sv);
339}
340
341static void
342sv_clear_foreign (SV *sv)
343{
344 /* todo: iterate over magic and only free ours, but of course */
345 /* the perl5porters will call that (correct) behaviour buggy */
346 sv_unmagic (sv, FOREIGN_MAGIC);
347}
348
349/*****************************************************************************/
350
351/* defines all sorts of constants to 0 unless they are already defined */
352/* also provides const_iv_ and const_niv_ macros for them */
353#include "def0.h"
354
355/*****************************************************************************/
356
357static void
358fiemap (eio_req *req)
359{
360 req->result = -1;
361
362#if HAVE_FIEMAP
363 /* assume some c99 */
364 struct fiemap *fiemap = 0;
365 size_t end_offset;
366 int count = req->int3;
367
368 req->flags |= EIO_FLAG_PTR1_FREE;
369
370 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
371 /* increase in fixed steps */
372 if (count < 0)
373 count = 8;
374
375 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
376 errno = ENOMEM;
377 if (!fiemap)
140 return; 378 return;
141 379
142 if (!main_sig) 380 req->ptr1 = fiemap;
381
382 fiemap->fm_start = req->offs;
383 fiemap->fm_length = req->size;
384 fiemap->fm_flags = req->int2;
385 fiemap->fm_extent_count = count;
386
387 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
143 return; 388 return;
144 389
145 sigemptyset (&ss); 390 if (req->int3 >= 0 /* not autosizing */
146 sigaddset (&ss, main_sig); 391 || !fiemap->fm_mapped_extents /* no more extents */
147 pthread_sigmask (SIG_BLOCK, &ss, 0); 392 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
148} 393 goto done;
149 394
150void unblock_sig () 395 /* else we have to loop -
151{ 396 * it would be tempting (actually I tried that first) to just query the
152 sigset_t ss; 397 * number of extents needed, but linux often feels like not returning all
398 * extents, without telling us it left any out. this complicates
399 * this quite a bit.
400 */
153 401
154 if (--block_sig_level) 402 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
155 return;
156 403
157 if (!main_sig) 404 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 { 405 {
190 closedir (wrk->dirp); 406 /* 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; 407 char scratch[3072];
192 } 408 struct fiemap *incmap = (struct fiemap *)scratch;
193 409
194 if (wrk->dbuf) 410 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
195 { 411 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
196 free (wrk->dbuf); 412 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
197 wrk->dbuf = 0; 413 incmap->fm_flags = fiemap->fm_flags;
198 } 414 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
199}
200 415
201static void worker_free (worker *wrk) 416 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; 417 return;
296 418
297 --q->size; 419 if (!incmap->fm_mapped_extents)
420 goto done;
298 421
299 for (pri = NUM_PRI; pri--; ) 422 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
300 { 423 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
301 aio_req req = q->qs[pri]; 424 errno = ENOMEM;
302
303 if (req) 425 if (!fiemap)
426 return;
427
428 req->ptr1 = fiemap;
429
430 for (count = 0; count < incmap->fm_mapped_extents; ++count)
304 { 431 {
305 if (!(q->qs[pri] = req->next)) 432 struct fiemap_extent *e = incmap->fm_extents + count;
306 q->qe[pri] = 0;
307 433
308 return req; 434 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
435
436 if (e->fe_logical >= end_offset)
437 goto done;
438
439 if (e->fe_flags & FIEMAP_EXTENT_LAST)
440 goto done;
441
309 } 442 }
310 } 443 }
311 444
312 abort (); 445done:
313} 446 req->result = 0;
314 447
315static int poll_cb (); 448#else
316static int req_invoke (aio_req req); 449 errno = ENOSYS;
450#endif
451}
452
453/*****************************************************************************/
454
455static int close_fd; /* dummy fd to close fds via dup2 */
456
457#if HAVE_STATX
458static struct statx stx;
459#define statx_offsetof(member) offsetof (struct statx, member)
460#define eio__statx statx
461#else
462#define statx_offsetof(member) 0
463#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
464#endif
465
466enum {
467 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
468};
469
470typedef eio_req *aio_req;
471typedef eio_req *aio_req_ornot;
472typedef eio_wd aio_wd;
473
474static SV *on_next_submit;
475static int next_pri = EIO_PRI_DEFAULT;
476static int max_outstanding;
477
478static s_epipe respipe;
479
317static void req_free (aio_req req); 480static void req_destroy (aio_req req);
318static void req_cancel (aio_req req); 481static void req_cancel (aio_req req);
319 482
483static void
484want_poll (void)
485{
486 /* write a dummy byte to the pipe so fh becomes ready */
487 s_epipe_signal (&respipe);
488}
489
490static void
491done_poll (void)
492{
493 /* read any signals sent by the worker threads */
494 s_epipe_drain (&respipe);
495}
496
320/* must be called at most once */ 497/* must be called at most once */
321static SV *req_sv (aio_req req, const char *klass) 498ecb_noinline
499static SV *
500req_sv (aio_req req, HV *stash)
322{ 501{
323 if (!req->self) 502 if (!req->self)
324 { 503 {
325 req->self = (SV *)newHV (); 504 req->self = (SV *)newHV ();
326 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 505 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
327 } 506 }
328 507
329 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 508 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
330} 509}
331 510
332static aio_req SvAIO_REQ (SV *sv) 511static SV *
512newSVaio_wd (aio_wd wd)
513{
514 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
515}
516
517ecb_noinline
518static aio_req
519SvAIO_REQ (SV *sv)
333{ 520{
334 MAGIC *mg; 521 MAGIC *mg;
335 522
336 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 523 if (!SvROK (sv)
524 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
525 || (SvSTASH (SvRV (sv)) != aio_grp_stash
526 && SvSTASH (SvRV (sv)) != aio_req_stash
527 && !sv_derived_from (sv, "IO::AIO::REQ")))
337 croak ("object of class " AIO_REQ_KLASS " expected"); 528 croak ("object of class IO::AIO::REQ expected");
338 529
339 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 530 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
340 531
341 return mg ? (aio_req)mg->mg_ptr : 0; 532 return mg ? (aio_req)mg->mg_ptr : 0;
342} 533}
343 534
535static aio_wd
536SvAIO_WD (SV *sv)
537{
538 if (!SvROK (sv)
539 || SvTYPE (SvRV (sv)) != SVt_PVMG
540 || SvSTASH (SvRV (sv)) != aio_wd_stash)
541 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
542
543 return (aio_wd)(long)SvIVX (SvRV (sv));
544}
545
546static SV *
547newmortalFH (int fd, int flags)
548{
549 if (fd < 0)
550 return &PL_sv_undef;
551
552 GV *gv = (GV *)sv_newmortal ();
553 char sym[64];
554 int symlen;
555
556 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
557 gv_init (gv, aio_stash, sym, symlen, 0);
558
559 symlen = snprintf (
560 sym,
561 sizeof (sym),
562 "%s&=%d",
563 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564 fd
565 );
566
567 return do_open (gv, sym, symlen, 0, 0, 0, 0)
568 ? (SV *)gv : &PL_sv_undef;
569}
570
571static void
344static void aio_grp_feed (aio_req grp) 572aio_grp_feed (aio_req grp)
345{ 573{
346 block_sig (); 574 if (grp->sv2 && SvOK (grp->sv2))
347
348 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
349 { 575 {
350 int old_len = grp->size;
351
352 if (grp->sv2 && SvOK (grp->sv2))
353 {
354 dSP; 576 dSP;
355 577
356 ENTER; 578 ENTER;
357 SAVETMPS; 579 SAVETMPS;
358 PUSHMARK (SP); 580 PUSHMARK (SP);
359 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 581 XPUSHs (req_sv (grp, aio_grp_stash));
360 PUTBACK; 582 PUTBACK;
361 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 583 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
362 SPAGAIN; 584 SPAGAIN;
363 FREETMPS; 585 FREETMPS;
364 LEAVE; 586 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 } 587 }
375
376 unblock_sig ();
377} 588}
378 589
379static void aio_grp_dec (aio_req grp) 590ecb_noinline
591static void
592req_submit (eio_req *req)
380{ 593{
381 --grp->size; 594 eio_submit (req);
382 595
383 /* call feeder, if applicable */ 596 if (expect_false (on_next_submit))
384 aio_grp_feed (grp);
385
386 /* finish, if done */
387 if (!grp->size && grp->int1)
388 { 597 {
389 block_sig (); 598 dSP;
599 SV *cb = sv_2mortal (on_next_submit);
390 600
391 if (!req_invoke (grp)) 601 on_next_submit = 0;
392 {
393 req_free (grp);
394 unblock_sig ();
395 croak (0);
396 }
397 602
398 req_free (grp); 603 PUSHMARK (SP);
399 unblock_sig (); 604 PUTBACK;
605 call_sv (cb, G_DISCARD | G_EVAL);
400 } 606 }
401} 607}
402 608
609static int
403static int req_invoke (aio_req req) 610req_invoke (eio_req *req)
404{ 611{
405 dSP;
406
407 if (req->flags & FLAG_SV1_RO_OFF) 612 if (req->flags & FLAG_SV2_RO_OFF)
408 SvREADONLY_off (req->sv1); 613 SvREADONLY_off (req->sv2);
409 614
410 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 615 if (!EIO_CANCELLED (req) && req->callback)
411 { 616 {
617 dSP;
618 static SV *sv_result_cache; /* caches the result integer SV */
619 SV *sv_result;
620
412 ENTER; 621 ENTER;
413 SAVETMPS; 622 SAVETMPS;
414 PUSHMARK (SP); 623 PUSHMARK (SP);
415 EXTEND (SP, 1); 624 EXTEND (SP, 1);
416 625
626 /* do not recreate the result IV from scratch each time */
627 if (expect_true (sv_result_cache))
628 {
629 sv_result = sv_result_cache; sv_result_cache = 0;
630 SvIV_set (sv_result, req->result);
631 SvIOK_only (sv_result);
632 }
633 else
634 {
635 sv_result = newSViv (req->result);
636 SvREADONLY_on (sv_result);
637 }
638
417 switch (req->type) 639 switch (req->type)
418 { 640 {
641 case EIO_WD_OPEN:
642 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
643 break;
644
419 case REQ_READDIR: 645 case EIO_READDIR:
420 { 646 {
421 SV *rv = &PL_sv_undef; 647 SV *rv = &PL_sv_undef;
422 648
423 if (req->result >= 0) 649 if (req->result >= 0)
424 { 650 {
425 int i; 651 int i;
426 char *buf = req->ptr2; 652 char *names = (char *)req->ptr2;
653 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
427 AV *av = newAV (); 654 AV *av = newAV ();
428 655
429 av_extend (av, req->result - 1); 656 av_extend (av, req->result - 1);
430 657
431 for (i = 0; i < req->result; ++i) 658 for (i = 0; i < req->result; ++i)
432 { 659 {
433 SV *sv = newSVpv (buf, 0); 660 if (req->int1 & EIO_READDIR_DENTS)
661 {
662 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
434 663
664 if (req->int1 & EIO_READDIR_CUSTOM2)
665 {
666 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
667 AV *avent = newAV ();
668
669 av_extend (avent, 2);
670
671 if (!sv_type [ent->type])
672 {
673 sv_type [ent->type] = newSViv (ent->type);
674 SvREADONLY_on (sv_type [ent->type]);
675 }
676
677 av_store (avent, 0, namesv);
678 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
679 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
680
681 av_store (av, i, newRV_noinc ((SV *)avent));
682 }
683 else
435 av_store (av, i, sv); 684 av_store (av, i, namesv);
685
686 ++ent;
687 }
688 else
689 {
690 SV *name = newSVpv (names, 0);
691 av_store (av, i, name);
436 buf += SvCUR (sv) + 1; 692 names += SvCUR (name) + 1;
693 }
437 } 694 }
438 695
439 rv = sv_2mortal (newRV_noinc ((SV *)av)); 696 rv = sv_2mortal (newRV_noinc ((SV *)av));
440 } 697 }
441 698
442 PUSHs (rv); 699 PUSHs (rv);
700
701 if (req->int1 & EIO_READDIR_CUSTOM1)
702 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
443 } 703 }
444 break; 704 break;
445 705
446 case REQ_OPEN: 706 case EIO_OPEN:
707 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
708 break;
709
710 case EIO_STATVFS:
711 case EIO_FSTATVFS:
447 { 712 {
448 /* convert fd to fh */ 713 SV *rv = &PL_sv_undef;
449 SV *fh; 714
715#ifndef _WIN32
716 if (req->result >= 0)
717 {
718 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
719 HV *hv = newHV ();
720 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
721 * chooses to make it a struct.
722 */
723 unsigned long fsid = 0;
724 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
450 725
451 PUSHs (sv_2mortal (newSViv (req->result))); 726 rv = sv_2mortal (newRV_noinc ((SV *)hv));
452 PUTBACK;
453 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
454 SPAGAIN;
455 727
456 fh = POPs; 728 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
457 PUSHMARK (SP); 729 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
730 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
731 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
732 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
733 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
734 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
735 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
736 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
737 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
738 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
739 }
740#endif
741
458 XPUSHs (fh); 742 PUSHs (rv);
459 } 743 }
744
460 break; 745 break;
461 746
462 case REQ_GROUP: 747 case EIO_GROUP:
463 req->int1 = 2; /* mark group as finished */ 748 req->int1 = 2; /* mark group as finished */
464 749
465 if (req->sv1) 750 if (req->sv1)
466 { 751 {
467 int i; 752 int i;
… …
471 for (i = 0; i <= AvFILL (av); ++i) 756 for (i = 0; i <= AvFILL (av); ++i)
472 PUSHs (*av_fetch (av, i, 0)); 757 PUSHs (*av_fetch (av, i, 0));
473 } 758 }
474 break; 759 break;
475 760
476 case REQ_NOP: 761 case EIO_NOP:
477 case REQ_BUSY: 762 case EIO_BUSY:
478 break; 763 break;
479 764
480 case REQ_READLINK: 765 case EIO_READLINK:
766 case EIO_REALPATH:
481 if (req->result > 0) 767 if (req->result > 0)
768 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
769 break;
770
771 case EIO_STAT:
772 case EIO_LSTAT:
773 case EIO_FSTAT:
774 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
775
776 if (!(PL_laststatval = req->result))
777 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
778 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
779
780 PUSHs (sv_result);
781 break;
782
783 case EIO_SEEK:
784 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
785 break;
786
787 case EIO_READ:
788 {
789 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
790 *SvEND (req->sv2) = 0;
791 SvPOK_only (req->sv2);
792 SvSETMAGIC (req->sv2);
793 PUSHs (sv_result);
794 }
795 break;
796
797 case EIO_SLURP:
798 {
799 if (req->result >= 0)
800 {
801 /* if length was originally not known, we steal the malloc'ed memory */
802 if (req->flags & EIO_FLAG_PTR2_FREE)
803 {
804 req->flags &= ~EIO_FLAG_PTR2_FREE;
805 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
806 }
807 else
808 {
809 SvCUR_set (req->sv2, req->result);
810 *SvEND (req->sv2) = 0;
811 SvPOK_only (req->sv2);
812 }
813
814 SvSETMAGIC (req->sv2);
815 }
816
817 PUSHs (sv_result);
818 }
819 break;
820
821 case EIO_CUSTOM:
822 if (req->feed == fiemap)
482 { 823 {
483 SvCUR_set (req->sv1, req->result); 824#if HAVE_FIEMAP
484 *SvEND (req->sv1) = 0;
485 PUSHs (req->sv1); 825 if (!req->result)
826 {
827 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
828
829 if (fiemap->fm_extent_count)
830 {
831 AV *av = newAV ();
832 int i;
833
834 while (fiemap->fm_mapped_extents)
835 {
836 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
837 AV *ext_av = newAV ();
838
839 av_store (ext_av, 3, newSVuv (extent->fe_flags));
840 av_store (ext_av, 2, newSVval64 (extent->fe_length));
841 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
842 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
843
844 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
845 }
846
847 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
848 }
849 else
850 {
851 SvIV_set (sv_result, fiemap->fm_mapped_extents);
852 PUSHs (sv_result);
853 }
854 }
855#endif
486 } 856 }
857 else
858 PUSHs (sv_result);
487 break; 859 break;
488 860
489 case REQ_STAT: 861#if 0
490 case REQ_LSTAT: 862 case EIO_CLOSE:
491 case REQ_FSTAT: 863 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; 864 break;
865#endif
497 866
498 case REQ_READ: 867 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)); 868 if (req->result > 0)
500 *SvEND (req->sv1) = 0; 869 SvIV_set (sv_result, 0);
501 PUSHs (sv_2mortal (newSViv (req->result))); 870 /* FALLTHROUGH */
502 break;
503 871
504 default: 872 default:
505 PUSHs (sv_2mortal (newSViv (req->result))); 873 PUSHs (sv_result);
506 break; 874 break;
507 } 875 }
508 876
509 errno = req->errorno; 877 errno = req->errorno;
510 878
511 PUTBACK; 879 PUTBACK;
512 call_sv (req->callback, G_VOID | G_EVAL); 880 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
513 SPAGAIN; 881 SPAGAIN;
882
883 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
884 SvREFCNT_dec (sv_result);
885 else
886 sv_result_cache = sv_result;
514 887
515 FREETMPS; 888 FREETMPS;
516 LEAVE; 889 LEAVE;
890
891 PUTBACK;
517 } 892 }
518 893
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); 894 return !!SvTRUE (ERRSV);
534} 895}
535 896
536static void req_free (aio_req req) 897static void
898req_destroy (aio_req req)
537{ 899{
538 if (req->self) 900 if (req->self)
539 { 901 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 902 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 903 SvREFCNT_dec (req->self);
542 } 904 }
543 905
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 906 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 907 SvREFCNT_dec (req->sv2);
908 SvREFCNT_dec (req->sv3);
909 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 910 SvREFCNT_dec (req->callback);
548 911
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 912 free (req);
553} 913}
554 914
915static void
555static void req_cancel_subs (aio_req grp) 916req_cancel_subs (aio_req grp)
556{ 917{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 918 if (grp->type != EIO_GROUP)
560 return; 919 return;
561 920
562 SvREFCNT_dec (grp->sv2); 921 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 922 grp->sv2 = 0;
564 923
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 924 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 925}
568 926
569static void req_cancel (aio_req req) 927ecb_cold
928static void
929create_respipe (void)
570{ 930{
571 req->flags |= FLAG_CANCELLED; 931 if (s_epipe_renew (&respipe))
572 932 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 933}
575 934
576static void *aio_proc(void *arg); 935static void
577 936poll_wait (void)
578static void start_thread (void)
579{ 937{
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) 938 while (eio_nreqs ())
676 { 939 {
677 int size; 940 int size;
678 if (WORDACCESS_UNSAFE) LOCK (reslock); 941
942 X_LOCK (EIO_POOL->reslock);
679 size = res_queue.size; 943 size = EIO_POOL->res_queue.size;
680 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 944 X_UNLOCK (EIO_POOL->reslock);
681 945
682 if (size) 946 if (size)
683 return; 947 return;
684 948
685 maybe_start_thread (); 949 etp_maybe_start_thread (EIO_POOL);
686 950
687 FD_ZERO(&rfd); 951 s_epipe_wait (&respipe);
688 FD_SET(respipe [0], &rfd);
689
690 select (respipe [0] + 1, &rfd, 0, 0, 0);
691 } 952 }
692} 953}
693 954
694static int poll_cb () 955static int
956poll_cb (void)
695{ 957{
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 (;;) 958 for (;;)
709 { 959 {
710 for (;;) 960 int res = eio_poll ();
961
962 if (res > 0)
963 croak (0);
964
965 if (!max_outstanding || max_outstanding > eio_nreqs ())
966 return res;
967
968 poll_wait ();
969 }
970}
971
972ecb_cold
973static void
974reinit (void)
975{
976 create_respipe ();
977
978 if (eio_init (want_poll, done_poll) < 0)
979 croak ("IO::AIO: unable to initialise eio library");
980}
981
982/*****************************************************************************/
983
984static SV *
985get_cb (SV *cb_sv)
986{
987 SvGETMAGIC (cb_sv);
988 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
989}
990
991ecb_noinline
992static aio_req ecb_noinline
993dreq (SV *callback)
994{
995 SV *cb_cv;
996 aio_req req;
997 int req_pri = next_pri;
998 next_pri = EIO_PRI_DEFAULT;
999
1000 cb_cv = get_cb (callback);
1001
1002 req = calloc (sizeof (*req), 1);
1003 if (!req)
1004 croak ("out of memory during eio_req allocation");
1005
1006 req->callback = SvREFCNT_inc (cb_cv);
1007 req->pri = req_pri;
1008
1009 return req;
1010}
1011
1012#define dREQ \
1013 aio_req req = dreq (callback); \
1014
1015#define REQ_SEND \
1016 PUTBACK; \
1017 req_submit (req); \
1018 SPAGAIN; \
1019 \
1020 if (GIMME_V != G_VOID) \
1021 XPUSHs (req_sv (req, aio_req_stash));
1022
1023/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1024ecb_inline
1025void
1026req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1027{
1028 if (expect_false (SvROK (path)))
1029 {
1030 SV *rv = SvRV (path);
1031 SV *wdob;
1032
1033 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
711 { 1034 {
712 maybe_start_thread (); 1035 path = AvARRAY (rv)[1];
1036 wdob = AvARRAY (rv)[0];
713 1037
714 LOCK (reslock); 1038 if (SvOK (wdob))
715 req = reqq_shift (&res_queue);
716
717 if (req)
718 { 1039 {
719 --npending; 1040 *wd = SvAIO_WD (wdob);
720 1041 *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 } 1042 }
742 else 1043 else
743 { 1044 *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 } 1045 }
1046 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1047 {
1048 *wd = (aio_wd)(long)SvIVX (rv);
1049 *wdsv = SvREFCNT_inc_NN (rv);
1050 *ptr = ".";
1051 return; /* path set to "." */
1052 }
1053 else
1054 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1055 }
767 1056
768 if (nreqs <= max_outstanding) 1057 *pathsv = newSVsv (path);
1058 *ptr = SvPVbyte_nolen (*pathsv);
1059}
1060
1061ecb_noinline
1062static void
1063req_set_path1 (aio_req req, SV *path)
1064{
1065 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1066}
1067
1068ecb_noinline
1069static void
1070req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1071{
1072 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1073
1074 switch (SvTYPE (rv))
1075 {
1076 case SVt_PVIO:
1077 case SVt_PVLV:
1078 case SVt_PVGV:
1079 req->type = type_fh;
1080 req->sv1 = newSVsv (fh_or_path);
1081 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
769 break; 1082 break;
770 1083
771 poll_wait (); 1084 default:
772 1085 req->type = type_path;
773 ++maxreqs; 1086 req_set_path1 (req, fh_or_path);
1087 break;
774 } 1088 }
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} 1089}
791 1090
792/*****************************************************************************/ 1091/*****************************************************************************/
793/* work around various missing functions */
794 1092
795#if !HAVE_PREADWRITE 1093static void
796# define pread aio_pread 1094ts_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{ 1095{
808 ssize_t res; 1096 ts->tv_sec = value;
809 off_t ooffset; 1097 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} 1098}
820 1099
821static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1100static NV
1101ts_get (const struct timespec *ts)
822{ 1102{
823 ssize_t res; 1103 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} 1104}
835#endif
836 1105
837#if !HAVE_FDATASYNC 1106/*****************************************************************************/
838# define fdatasync fsync
839#endif
840 1107
841#if !HAVE_READAHEAD 1108/* extract a ref-to-array of strings into a temporary c style string vector */
842# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 1109static char **
843 1110extract_stringvec (SV *sv, const char *croakmsg)
844static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
845{ 1111{
846 dBUF; 1112 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
1113 croak ("%s", croakmsg);
847 1114
848 while (count > 0) 1115 AV *av = (AV *)SvRV (sv);
1116 int i, nelem = av_len (av) + 1;
1117 char **vecp = (char **)SvPVX (sv_2mortal (newSV (sizeof (char *) * (nelem + 1))));
1118
1119 for (i = 0; i < nelem; ++i)
849 { 1120 {
850 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 1121 SV **e = av_fetch (av, i, 0);
851 1122
852 pread (fd, aio_buf, len, offset); 1123 if (e && *e)
853 offset += len; 1124 vecp[i] = SvPVbyte_nolen (*e);
854 count -= len; 1125 else
1126 vecp[i] = "";
855 } 1127 }
856 1128
857 errno = 0; 1129 vecp[nelem] = 0;
858}
859 1130
860#endif 1131 return vecp;
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{
869 struct dirent *e;
870 int errorno;
871
872 LOCK (readdirlock);
873
874 e = readdir (dirp);
875 errorno = errno;
876
877 if (e)
878 {
879 *res = ent;
880 strcpy (ent->d_name, e->d_name);
881 }
882 else
883 *res = 0;
884
885 UNLOCK (readdirlock);
886
887 errno = errorno;
888 return e ? 0 : -1;
889} 1132}
890#endif
891 1133
892/* sendfile always needs emulation */ 1134/*****************************************************************************/
893static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
894{
895 ssize_t res;
896 1135
897 if (!count) 1136XS(boot_IO__AIO) ecb_cold;
898 return 0;
899 1137
900#if HAVE_SENDFILE 1138MODULE = IO::AIO PACKAGE = IO::AIO
901# if __linux
902 res = sendfile (ofd, ifd, &offset, count);
903 1139
904# elif __freebsd 1140PROTOTYPES: ENABLE
905 /* 1141
906 * Of course, the freebsd sendfile is a dire hack with no thoughts 1142BOOT:
907 * wasted on making it similar to other I/O functions. 1143{
908 */ 1144 static const struct {
1145 const char *name;
1146 IV iv;
1147 } *civ, const_iv[] = {
1148# define const_niv(name, value) { # name, (IV) value },
1149# define const_iv(name) { # name, (IV) name },
1150# define const_eio(name) { # name, (IV) EIO_ ## name },
1151
1152 /* you have to re-run ./gendef0 after adding/removing any constants here */
1153 /* the first block can be undef if missing */
1154 const_iv (ENOSYS)
1155 const_iv (EXDEV)
1156 const_iv (EBADR)
1157
1158 /* for lseek */
1159 const_iv (SEEK_DATA)
1160 const_iv (SEEK_HOLE)
1161
1162 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1163 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1164 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1165 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1166 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1167 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1168
1169 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1170 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1171 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1172 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1173 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1174
1175 /* the second block will be 0 when missing */
1176 const_iv (O_ACCMODE)
1177
1178 const_iv (O_RDONLY)
1179 const_iv (O_WRONLY)
1180 const_iv (O_RDWR)
1181 const_iv (O_CREAT)
1182 const_iv (O_TRUNC)
1183 const_iv (O_EXCL)
1184 const_iv (O_APPEND)
1185
1186 const_iv (O_ASYNC)
1187 const_iv (O_DIRECT)
1188 const_iv (O_NOATIME)
1189
1190 const_iv (O_CLOEXEC)
1191 const_iv (O_NOCTTY)
1192 const_iv (O_NOFOLLOW)
1193 const_iv (O_NONBLOCK)
1194 const_iv (O_EXEC)
1195 const_iv (O_SEARCH)
1196 const_iv (O_DIRECTORY)
1197 const_iv (O_DSYNC)
1198 const_iv (O_RSYNC)
1199 const_iv (O_SYNC)
1200 const_iv (O_PATH)
1201 const_iv (O_TMPFILE)
1202 const_iv (O_TTY_INIT)
1203
1204 const_iv (S_IFIFO)
1205 const_iv (S_IFCHR)
1206 const_iv (S_IFBLK)
1207 const_iv (S_IFLNK)
1208 const_iv (S_IFREG)
1209 const_iv (S_IFDIR)
1210 const_iv (S_IFWHT)
1211 const_iv (S_IFSOCK)
1212 const_iv (S_IFMT)
1213
1214 const_iv (ST_RDONLY)
1215 const_iv (ST_NOSUID)
1216 const_iv (ST_NODEV)
1217 const_iv (ST_NOEXEC)
1218 const_iv (ST_SYNCHRONOUS)
1219 const_iv (ST_MANDLOCK)
1220 const_iv (ST_WRITE)
1221 const_iv (ST_APPEND)
1222 const_iv (ST_IMMUTABLE)
1223 const_iv (ST_NOATIME)
1224 const_iv (ST_NODIRATIME)
1225 const_iv (ST_RELATIME)
1226
1227 const_iv (PROT_NONE)
1228 const_iv (PROT_EXEC)
1229 const_iv (PROT_READ)
1230 const_iv (PROT_WRITE)
1231
1232 const_iv (MAP_PRIVATE)
1233 const_iv (MAP_SHARED)
1234 const_iv (MAP_FIXED)
1235 const_iv (MAP_ANONYMOUS)
1236
1237 /* linuxish */
1238 const_iv (MAP_LOCKED)
1239 const_iv (MAP_NORESERVE)
1240 const_iv (MAP_POPULATE)
1241 const_iv (MAP_NONBLOCK)
1242 const_iv (MAP_GROWSDOWN)
1243 const_iv (MAP_32BIT)
1244 const_iv (MAP_HUGETLB)
1245 const_iv (MAP_STACK)
1246 const_iv (MAP_FIXED_NOREPLACE)
1247 const_iv (MAP_SHARED_VALIDATE)
1248 const_iv (MAP_SYNC)
1249 const_iv (MAP_UNINITIALIZED)
1250
1251 const_iv (MREMAP_MAYMOVE)
1252 const_iv (MREMAP_FIXED)
1253
1254 const_iv (MSG_CMSG_CLOEXEC)
1255 const_iv (SOCK_CLOEXEC)
1256
1257 const_iv (F_DUPFD_CLOEXEC)
1258
1259 const_iv (F_ADD_SEALS)
1260 const_iv (F_GET_SEALS)
1261 const_iv (F_SEAL_SEAL)
1262 const_iv (F_SEAL_SHRINK)
1263 const_iv (F_SEAL_GROW)
1264 const_iv (F_SEAL_WRITE)
1265
1266 const_iv (F_OFD_GETLK)
1267 const_iv (F_OFD_SETLK)
1268 const_iv (F_OFD_GETLKW)
1269
1270 const_iv (FIFREEZE)
1271 const_iv (FITHAW)
1272 const_iv (FITRIM)
1273 const_iv (FICLONE)
1274 const_iv (FICLONERANGE)
1275 const_iv (FIDEDUPERANGE)
1276
1277 const_iv (FS_IOC_GETFLAGS)
1278 const_iv (FS_IOC_SETFLAGS)
1279 const_iv (FS_IOC_GETVERSION)
1280 const_iv (FS_IOC_SETVERSION)
1281#if HAVE_FIEMAP /* broken on musl for, like, foreever */
1282 const_iv (FS_IOC_FIEMAP)
1283#endif
1284 const_iv (FS_IOC_FSGETXATTR)
1285 const_iv (FS_IOC_FSSETXATTR)
1286 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1287 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1288 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1289
1290 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1291
1292 const_iv (FS_SECRM_FL)
1293 const_iv (FS_UNRM_FL)
1294 const_iv (FS_COMPR_FL)
1295 const_iv (FS_SYNC_FL)
1296 const_iv (FS_IMMUTABLE_FL)
1297 const_iv (FS_APPEND_FL)
1298 const_iv (FS_NODUMP_FL)
1299 const_iv (FS_NOATIME_FL)
1300 const_iv (FS_DIRTY_FL)
1301 const_iv (FS_COMPRBLK_FL)
1302 const_iv (FS_NOCOMP_FL)
1303 const_iv (FS_ENCRYPT_FL)
1304 const_iv (FS_BTREE_FL)
1305 const_iv (FS_INDEX_FL)
1306 const_iv (FS_JOURNAL_DATA_FL)
1307 const_iv (FS_NOTAIL_FL)
1308 const_iv (FS_DIRSYNC_FL)
1309 const_iv (FS_TOPDIR_FL)
1310 const_iv (FS_FL_USER_MODIFIABLE)
1311
1312 const_iv (FS_XFLAG_REALTIME)
1313 const_iv (FS_XFLAG_PREALLOC)
1314 const_iv (FS_XFLAG_IMMUTABLE)
1315 const_iv (FS_XFLAG_APPEND)
1316 const_iv (FS_XFLAG_SYNC)
1317 const_iv (FS_XFLAG_NOATIME)
1318 const_iv (FS_XFLAG_NODUMP)
1319 const_iv (FS_XFLAG_RTINHERIT)
1320 const_iv (FS_XFLAG_PROJINHERIT)
1321 const_iv (FS_XFLAG_NOSYMLINKS)
1322 const_iv (FS_XFLAG_EXTSIZE)
1323 const_iv (FS_XFLAG_EXTSZINHERIT)
1324 const_iv (FS_XFLAG_NODEFRAG)
1325 const_iv (FS_XFLAG_FILESTREAM)
1326 const_iv (FS_XFLAG_DAX)
1327 const_iv (FS_XFLAG_HASATTR)
1328
1329 const_iv (FIEMAP_FLAG_SYNC)
1330 const_iv (FIEMAP_FLAG_XATTR)
1331 const_iv (FIEMAP_FLAGS_COMPAT)
1332 const_iv (FIEMAP_EXTENT_LAST)
1333 const_iv (FIEMAP_EXTENT_UNKNOWN)
1334 const_iv (FIEMAP_EXTENT_DELALLOC)
1335 const_iv (FIEMAP_EXTENT_ENCODED)
1336 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1337 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1338 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1339 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1340 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1341 const_iv (FIEMAP_EXTENT_MERGED)
1342 const_iv (FIEMAP_EXTENT_SHARED)
1343
1344 const_iv (SPLICE_F_MOVE)
1345 const_iv (SPLICE_F_NONBLOCK)
1346 const_iv (SPLICE_F_MORE)
1347 const_iv (SPLICE_F_GIFT)
1348
1349 const_iv (EFD_CLOEXEC)
1350 const_iv (EFD_NONBLOCK)
1351 const_iv (EFD_SEMAPHORE)
1352
1353 const_iv (MFD_CLOEXEC)
1354 const_iv (MFD_ALLOW_SEALING)
1355 const_iv (MFD_HUGETLB)
1356 const_iv (MFD_HUGETLB_2MB)
1357 const_iv (MFD_HUGETLB_1GB)
1358
1359 const_iv (CLOCK_REALTIME)
1360 const_iv (CLOCK_MONOTONIC)
1361 const_iv (CLOCK_BOOTTIME)
1362 const_iv (CLOCK_REALTIME_ALARM)
1363 const_iv (CLOCK_BOOTTIME_ALARM)
1364
1365 const_iv (TFD_NONBLOCK)
1366 const_iv (TFD_CLOEXEC)
1367
1368 const_iv (TFD_TIMER_ABSTIME)
1369 const_iv (TFD_TIMER_CANCEL_ON_SET)
1370
1371 const_iv (STATX_TYPE)
1372 const_iv (STATX_MODE)
1373 const_iv (STATX_NLINK)
1374 const_iv (STATX_UID)
1375 const_iv (STATX_GID)
1376 const_iv (STATX_ATIME)
1377 const_iv (STATX_MTIME)
1378 const_iv (STATX_CTIME)
1379 const_iv (STATX_INO)
1380 const_iv (STATX_SIZE)
1381 const_iv (STATX_BLOCKS)
1382 const_iv (STATX_BASIC_STATS)
1383 const_iv (STATX_ALL)
1384 const_iv (STATX_BTIME)
1385 const_iv (STATX_ATTR_COMPRESSED)
1386 const_iv (STATX_ATTR_IMMUTABLE)
1387 const_iv (STATX_ATTR_APPEND)
1388 const_iv (STATX_ATTR_NODUMP)
1389 const_iv (STATX_ATTR_ENCRYPTED)
1390 const_iv (STATX_ATTR_AUTOMOUNT)
1391
1392 const_iv (AT_FDCWD)
1393 const_iv (AT_SYMLINK_NOFOLLOW)
1394 const_iv (AT_EACCESS)
1395 const_iv (AT_REMOVEDIR)
1396 const_iv (AT_SYMLINK_FOLLOW)
1397 const_iv (AT_NO_AUTOMOUNT)
1398 const_iv (AT_EMPTY_PATH)
1399 const_iv (AT_STATX_SYNC_TYPE)
1400 const_iv (AT_STATX_AS_STAT)
1401 const_iv (AT_STATX_FORCE_SYNC)
1402 const_iv (AT_STATX_DONT_SYNC)
1403 const_iv (AT_RECURSIVE)
1404
1405 const_iv (OPEN_TREE_CLONE)
1406
1407 const_iv (FSOPEN_CLOEXEC)
1408
1409 const_iv (FSPICK_CLOEXEC)
1410 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1411 const_iv (FSPICK_NO_AUTOMOUNT)
1412 const_iv (FSPICK_EMPTY_PATH)
1413
1414 const_iv (MOVE_MOUNT_F_SYMLINKS)
1415 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1416 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1417 const_iv (MOVE_MOUNT_T_SYMLINKS)
1418 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1419 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1420
1421 /* waitid */
1422 const_iv (P_PID)
1423 const_iv (P_PIDFD)
1424 const_iv (P_PGID)
1425 const_iv (P_ALL)
1426
1427 const_iv (FSCONFIG_SET_FLAG)
1428 const_iv (FSCONFIG_SET_STRING)
1429 const_iv (FSCONFIG_SET_BINARY)
1430 const_iv (FSCONFIG_SET_PATH)
1431 const_iv (FSCONFIG_SET_PATH_EMPTY)
1432 const_iv (FSCONFIG_SET_FD)
1433 const_iv (FSCONFIG_CMD_CREATE)
1434 const_iv (FSCONFIG_CMD_RECONFIGURE)
1435
1436 const_iv (MOUNT_ATTR_RDONLY)
1437 const_iv (MOUNT_ATTR_NOSUID)
1438 const_iv (MOUNT_ATTR_NODEV)
1439 const_iv (MOUNT_ATTR_NOEXEC)
1440 const_iv (MOUNT_ATTR__ATIME)
1441 const_iv (MOUNT_ATTR_RELATIME)
1442 const_iv (MOUNT_ATTR_NOATIME)
1443 const_iv (MOUNT_ATTR_STRICTATIME)
1444 const_iv (MOUNT_ATTR_NODIRATIME)
1445
1446 /* sys/mount.h */
1447 const_iv (MS_RDONLY)
1448 const_iv (MS_NOSUID)
1449 const_iv (MS_NODEV)
1450 const_iv (MS_NOEXEC)
1451 const_iv (MS_SYNCHRONOUS)
1452 const_iv (MS_REMOUNT)
1453 const_iv (MS_MANDLOCK)
1454 const_iv (MS_DIRSYNC)
1455 const_iv (MS_NOATIME)
1456 const_iv (MS_NODIRATIME)
1457 const_iv (MS_BIND)
1458 const_iv (MS_MOVE)
1459 const_iv (MS_REC)
1460 const_iv (MS_SILENT)
1461 const_iv (MS_POSIXACL)
1462 const_iv (MS_UNBINDABLE)
1463 const_iv (MS_PRIVATE)
1464 const_iv (MS_SLAVE)
1465 const_iv (MS_SHARED)
1466 const_iv (MS_RELATIME)
1467 const_iv (MS_KERNMOUNT)
1468 const_iv (MS_I_VERSION)
1469 const_iv (MS_STRICTATIME)
1470 const_iv (MS_LAZYTIME)
1471 const_iv (MS_ACTIVE)
1472 const_iv (MS_NOUSER)
1473 const_iv (MS_RMT_MASK)
1474 const_iv (MS_MGC_VAL)
1475 const_iv (MS_MGC_MSK)
1476
1477 const_iv (MNT_FORCE)
1478 const_iv (MNT_DETACH)
1479 const_iv (MNT_EXPIRE)
1480 const_iv (UMOUNT_NOFOLLOW)
1481
1482 const_iv (BLKROSET)
1483 const_iv (BLKROGET)
1484 const_iv (BLKRRPART)
1485 const_iv (BLKGETSIZE)
1486 const_iv (BLKFLSBUF)
1487 const_iv (BLKRASET)
1488 const_iv (BLKRAGET)
1489 const_iv (BLKFRASET)
1490 const_iv (BLKFRAGET)
1491 const_iv (BLKSECTSET)
1492 const_iv (BLKSECTGET)
1493 const_iv (BLKSSZGET)
1494 const_iv (BLKBSZGET)
1495 const_iv (BLKBSZSET)
1496 const_iv (BLKGETSIZE64)
1497
1498 /* these are libeio constants, and are independent of gendef0 */
1499 const_eio (SEEK_SET)
1500 const_eio (SEEK_CUR)
1501 const_eio (SEEK_END)
1502
1503 const_eio (MCL_FUTURE)
1504 const_eio (MCL_CURRENT)
1505 const_eio (MCL_ONFAULT)
1506
1507 const_eio (MS_ASYNC)
1508 const_eio (MS_INVALIDATE)
1509 const_eio (MS_SYNC)
1510
1511 const_eio (MT_MODIFY)
1512
1513 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1514 const_eio (SYNC_FILE_RANGE_WRITE)
1515 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1516
1517 const_eio (FALLOC_FL_KEEP_SIZE)
1518 const_eio (FALLOC_FL_PUNCH_HOLE)
1519 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1520 const_eio (FALLOC_FL_ZERO_RANGE)
1521 const_eio (FALLOC_FL_INSERT_RANGE)
1522 const_eio (FALLOC_FL_UNSHARE_RANGE)
1523
1524 const_eio (RENAME_NOREPLACE)
1525 const_eio (RENAME_EXCHANGE)
1526 const_eio (RENAME_WHITEOUT)
1527
1528 const_eio (READDIR_DENTS)
1529 const_eio (READDIR_DIRS_FIRST)
1530 const_eio (READDIR_STAT_ORDER)
1531 const_eio (READDIR_FOUND_UNKNOWN)
1532
1533 const_eio (DT_UNKNOWN)
1534 const_eio (DT_FIFO)
1535 const_eio (DT_CHR)
1536 const_eio (DT_DIR)
1537 const_eio (DT_BLK)
1538 const_eio (DT_REG)
1539 const_eio (DT_LNK)
1540 const_eio (DT_SOCK)
1541 const_eio (DT_WHT)
1542 };
1543
1544 aio_stash = gv_stashpv ("IO::AIO" , 1);
1545 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1546 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1547 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1548
1549 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1550 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1551
1552 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1553
1554 /* allocate dummy pipe fd for aio_close */
909 { 1555 {
910 off_t sbytes; 1556 int pipefd [2];
911 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
912 1557
913 if (res < 0 && sbytes) 1558 if (
914 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1559#ifdef _WIN32
915 res = sbytes; 1560 _pipe (pipefd, 1, _O_BINARY) < 0
1561#else
1562 pipe (pipefd) < 0
1563 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1564#endif
1565 || close (pipefd [1]) < 0
1566 )
1567 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1568
1569 close_fd = pipefd [0];
916 } 1570 }
917 1571
918# elif __hpux 1572 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} 1573}
984 1574
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 1575void
1576reinit ()
1577 PROTOTYPE:
1578
1579void
1285max_poll_reqs (int nreqs) 1580max_poll_reqs (unsigned int nreqs)
1286 PROTOTYPE: $ 1581 PROTOTYPE: $
1287 CODE: 1582 CODE:
1288 max_poll_reqs = nreqs; 1583 eio_set_max_poll_reqs (nreqs);
1289 1584
1290void 1585void
1291max_poll_time (double nseconds) 1586max_poll_time (double nseconds)
1292 PROTOTYPE: $ 1587 PROTOTYPE: $
1293 CODE: 1588 CODE:
1294 max_poll_time = nseconds * AIO_TICKS; 1589 eio_set_max_poll_time (nseconds);
1295 1590
1296void 1591void
1297min_parallel (int nthreads) 1592min_parallel (unsigned int nthreads)
1298 PROTOTYPE: $
1299
1300void
1301max_parallel (int nthreads)
1302 PROTOTYPE: $
1303
1304void
1305max_idle (int nthreads)
1306 PROTOTYPE: $ 1593 PROTOTYPE: $
1307 CODE: 1594 CODE:
1308 set_max_idle (nthreads); 1595 eio_set_min_parallel (nthreads);
1309 1596
1310int 1597void
1311max_outstanding (int maxreqs) 1598max_parallel (unsigned int nthreads)
1312 PROTOTYPE: $ 1599 PROTOTYPE: $
1313 CODE: 1600 CODE:
1314 RETVAL = max_outstanding; 1601 eio_set_max_parallel (nthreads);
1602
1603void
1604max_idle (unsigned int nthreads)
1605 PROTOTYPE: $
1606 CODE:
1607 eio_set_max_idle (nthreads);
1608
1609void
1610idle_timeout (unsigned int seconds)
1611 PROTOTYPE: $
1612 CODE:
1613 eio_set_idle_timeout (seconds);
1614
1615void
1616max_outstanding (unsigned int maxreqs)
1617 PROTOTYPE: $
1618 CODE:
1315 max_outstanding = maxreqs; 1619 max_outstanding = maxreqs;
1316 OUTPUT:
1317 RETVAL
1318 1620
1319void 1621void
1320aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1622aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1321 SV8 * pathname
1322 int flags
1323 int mode
1324 SV * callback
1325 PROTOTYPE: $$$;$
1326 PPCODE: 1623 PPCODE:
1327{ 1624{
1328 dREQ; 1625 dREQ;
1329 1626
1627 req->type = EIO_WD_OPEN;
1628 req_set_path1 (req, pathname);
1629
1630 REQ_SEND;
1631}
1632
1633void
1634aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1635 PPCODE:
1636{
1637 dREQ;
1638
1330 req->type = REQ_OPEN; 1639 req->type = EIO_OPEN;
1331 req->sv1 = newSVsv (pathname); 1640 req_set_path1 (req, pathname);
1332 req->ptr1 = SvPVbyte_nolen (req->sv1);
1333 req->int1 = flags; 1641 req->int1 = flags;
1334 req->mode = mode; 1642 req->int2 = mode;
1335 1643
1336 REQ_SEND; 1644 REQ_SEND;
1337} 1645}
1338 1646
1339void 1647void
1340aio_close (fh,callback=&PL_sv_undef) 1648aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1341 SV * fh
1342 SV * callback
1343 PROTOTYPE: $;$
1344 ALIAS: 1649 ALIAS:
1345 aio_close = REQ_CLOSE
1346 aio_fsync = REQ_FSYNC 1650 aio_fsync = EIO_FSYNC
1347 aio_fdatasync = REQ_FDATASYNC 1651 aio_fdatasync = EIO_FDATASYNC
1652 aio_syncfs = EIO_SYNCFS
1348 PPCODE: 1653 PPCODE:
1349{ 1654{
1655 int fd = s_fileno_croak (fh, 0);
1350 dREQ; 1656 dREQ;
1351 1657
1352 req->type = ix; 1658 req->type = ix;
1353 req->fh = newSVsv (fh); 1659 req->sv1 = newSVsv (fh);
1354 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1660 req->int1 = fd;
1355 1661
1356 REQ_SEND (req); 1662 REQ_SEND;
1357} 1663}
1358 1664
1359void 1665void
1666aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1667 PPCODE:
1668{
1669 int fd = s_fileno_croak (fh, 0);
1670 dREQ;
1671
1672 req->type = EIO_SYNC_FILE_RANGE;
1673 req->sv1 = newSVsv (fh);
1674 req->int1 = fd;
1675 req->offs = offset;
1676 req->size = nbytes;
1677 req->int2 = flags;
1678
1679 REQ_SEND;
1680}
1681
1682void
1683aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1684 PPCODE:
1685{
1686 int fd = s_fileno_croak (fh, 0);
1687 dREQ;
1688
1689 req->type = EIO_FALLOCATE;
1690 req->sv1 = newSVsv (fh);
1691 req->int1 = fd;
1692 req->int2 = mode;
1693 req->offs = offset;
1694 req->size = len;
1695
1696 REQ_SEND;
1697}
1698
1699void
1700aio_close (SV *fh, SV *callback = &PL_sv_undef)
1701 PPCODE:
1702{
1703 int fd = s_fileno_croak (fh, 0);
1704 dREQ;
1705#if 0
1706 /* partially duplicate logic in s_fileno */
1707 SvGETMAGIC (fh);
1708
1709 if (SvROK (fh))
1710 {
1711 fh = SvRV (fh);
1712 SvGETMAGIC (fh);
1713 }
1714
1715 if (SvTYPE (fh) == SVt_PVGV)
1716 {
1717 /* perl filehandle */
1718 PerlIOUnix_refcnt_inc (fd);
1719 do_close ((GV *)fh, 1);
1720
1721 req->type = EIO_CLOSE;
1722 req->int1 = fd;
1723 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1724 }
1725 else
1726#endif
1727 {
1728 /* fd number */
1729 req->type = EIO_DUP2;
1730 req->int1 = close_fd;
1731 req->sv2 = newSVsv (fh);
1732 req->int2 = fd;
1733 }
1734
1735 REQ_SEND;
1736}
1737
1738void
1739aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1740 PPCODE:
1741{
1742 int fd = s_fileno_croak (fh, 0);
1743 dREQ;
1744
1745 req->type = EIO_SEEK;
1746 req->sv1 = newSVsv (fh);
1747 req->int1 = fd;
1748 req->offs = SvVAL64 (offset);
1749 req->int2 = whence;
1750
1751 REQ_SEND;
1752}
1753
1754void
1360aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1755aio_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: 1756 ALIAS:
1368 aio_read = REQ_READ 1757 aio_read = EIO_READ
1369 aio_write = REQ_WRITE 1758 aio_write = EIO_WRITE
1370 PROTOTYPE: $$$$$;$
1371 PPCODE: 1759 PPCODE:
1372{ 1760{
1373 STRLEN svlen; 1761 STRLEN svlen;
1762 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1374 char *svptr = SvPVbyte (data, svlen); 1763 char *svptr = SvPVbyte (data, svlen);
1375 1764 UV len = SvUV (length);
1376 SvUPGRADE (data, SVt_PV);
1377 SvPOK_on (data);
1378 1765
1379 if (dataoffset < 0) 1766 if (dataoffset < 0)
1380 dataoffset += svlen; 1767 dataoffset += svlen;
1381 1768
1382 if (dataoffset < 0 || dataoffset > svlen) 1769 if (dataoffset < 0 || dataoffset > svlen)
1383 croak ("data offset outside of string"); 1770 croak ("dataoffset outside of data scalar");
1384 1771
1385 if (ix == REQ_WRITE) 1772 if (ix == EIO_WRITE)
1386 { 1773 {
1387 /* write: check length and adjust. */ 1774 /* write: check length and adjust. */
1388 if (length < 0 || length + dataoffset > svlen) 1775 if (!SvOK (length) || len + dataoffset > svlen)
1389 length = svlen - dataoffset; 1776 len = svlen - dataoffset;
1390 } 1777 }
1391 else 1778 else
1392 { 1779 {
1393 /* read: grow scalar as necessary */ 1780 /* read: check type and grow scalar as necessary */
1781 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1394 svptr = SvGROW (data, length + dataoffset + 1); 1782 svptr = sv_grow (data, len + dataoffset + 1);
1783 else if (SvCUR (data) < len + dataoffset)
1784 croak ("length + dataoffset outside of scalar, and cannot grow");
1395 } 1785 }
1396
1397 if (length < 0)
1398 croak ("length must not be negative");
1399 1786
1400 { 1787 {
1401 dREQ; 1788 dREQ;
1402 1789
1403 req->type = ix; 1790 req->type = ix;
1404 req->fh = newSVsv (fh); 1791 req->sv1 = newSVsv (fh);
1405 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1792 req->int1 = fd;
1406 : IoOFP (sv_2io (fh))); 1793 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1407 req->offs = offset;
1408 req->size = length; 1794 req->size = len;
1409 req->sv1 = SvREFCNT_inc (data); 1795 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr1 = (char *)svptr + dataoffset; 1796 req->ptr2 = (char *)svptr + dataoffset;
1411 req->stroffset = dataoffset; 1797 req->stroffset = dataoffset;
1412 1798
1413 if (!SvREADONLY (data)) 1799 if (!SvREADONLY (data))
1414 { 1800 {
1415 SvREADONLY_on (data); 1801 SvREADONLY_on (data);
1416 req->flags |= FLAG_SV1_RO_OFF; 1802 req->flags |= FLAG_SV2_RO_OFF;
1417 } 1803 }
1418 1804
1419 REQ_SEND; 1805 REQ_SEND;
1420 } 1806 }
1421} 1807}
1422 1808
1423void 1809void
1424aio_readlink (path,callback=&PL_sv_undef) 1810aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1425 SV8 * path 1811 ALIAS:
1426 SV * callback 1812 aio_ioctl = EIO_IOCTL
1427 PROTOTYPE: $$;$ 1813 aio_fcntl = EIO_FCNTL
1428 PPCODE: 1814 PPCODE:
1429{ 1815{
1430 SV *data; 1816 int fd = s_fileno_croak (fh, 0);
1817 char *svptr;
1818
1819 if (SvPOK (arg) || !SvNIOK (arg))
1820 {
1821 STRLEN svlen;
1822 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1823#ifdef IOCPARM_LEN
1824 STRLEN need = IOCPARM_LEN (request);
1825#else
1826 STRLEN need = 256;
1827#endif
1828
1829 if (svlen < need)
1830 svptr = SvGROW (arg, need);
1831 }
1832 else
1833 svptr = (char *)SvIV (arg);
1834
1835 {
1836 dREQ;
1837
1838 req->type = ix;
1839 req->sv1 = newSVsv (fh);
1840 req->int1 = fd;
1841 req->int2 = (long)request;
1842 req->sv2 = SvREFCNT_inc (arg);
1843 req->ptr2 = svptr;
1844
1845 REQ_SEND;
1846 }
1847}
1848
1849void
1850aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1851 ALIAS:
1852 aio_readlink = EIO_READLINK
1853 aio_realpath = EIO_REALPATH
1854 PPCODE:
1855{
1431 dREQ; 1856 dREQ;
1432 1857
1433 data = newSV (NAME_MAX);
1434 SvPOK_on (data);
1435
1436 req->type = REQ_READLINK; 1858 req->type = ix;
1437 req->fh = newSVsv (path); 1859 req_set_path1 (req, pathname);
1438 req->ptr2 = SvPVbyte_nolen (req->fh);
1439 req->sv1 = data;
1440 req->ptr1 = SvPVbyte_nolen (data);
1441 1860
1442 REQ_SEND; 1861 REQ_SEND;
1443} 1862}
1444 1863
1445void 1864void
1446aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1865aio_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: $$$$;$
1453 PPCODE: 1866 PPCODE:
1454{ 1867{
1868 int ifd = s_fileno_croak (in_fh , 0);
1869 int ofd = s_fileno_croak (out_fh, 1);
1455 dREQ; 1870 dREQ;
1456 1871
1457 req->type = REQ_SENDFILE; 1872 req->type = EIO_SENDFILE;
1458 req->fh = newSVsv (out_fh); 1873 req->sv1 = newSVsv (out_fh);
1459 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1874 req->int1 = ofd;
1460 req->sv2 = newSVsv (in_fh); 1875 req->sv2 = newSVsv (in_fh);
1461 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1876 req->int2 = ifd;
1462 req->offs = in_offset; 1877 req->offs = in_offset;
1463 req->size = length; 1878 req->size = length;
1464 1879
1465 REQ_SEND; 1880 REQ_SEND;
1466} 1881}
1467 1882
1468void 1883void
1469aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1884aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1470 SV * fh
1471 UV offset
1472 IV length
1473 SV * callback
1474 PROTOTYPE: $$$;$
1475 PPCODE: 1885 PPCODE:
1476{ 1886{
1887 int fd = s_fileno_croak (fh, 0);
1477 dREQ; 1888 dREQ;
1478 1889
1479 req->type = REQ_READAHEAD; 1890 req->type = EIO_READAHEAD;
1480 req->fh = newSVsv (fh); 1891 req->sv1 = newSVsv (fh);
1481 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1892 req->int1 = fd;
1482 req->offs = offset; 1893 req->offs = offset;
1483 req->size = length; 1894 req->size = length;
1484 1895
1485 REQ_SEND; 1896 REQ_SEND;
1486} 1897}
1487 1898
1488void 1899void
1489aio_stat (fh_or_path,callback=&PL_sv_undef) 1900aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1490 SV8 * fh_or_path
1491 SV * callback
1492 ALIAS: 1901 ALIAS:
1493 aio_stat = REQ_STAT 1902 aio_stat = EIO_STAT
1494 aio_lstat = REQ_LSTAT 1903 aio_lstat = EIO_LSTAT
1904 aio_statvfs = EIO_STATVFS
1495 PPCODE: 1905 PPCODE:
1496{ 1906{
1497 dREQ; 1907 dREQ;
1498 1908
1499 req->ptr2 = malloc (sizeof (Stat_t)); 1909 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 1910
1521 REQ_SEND; 1911 REQ_SEND;
1522} 1912}
1523 1913
1524void 1914void
1915st_xtime ()
1916 ALIAS:
1917 st_atime = 0x01
1918 st_mtime = 0x02
1919 st_ctime = 0x04
1920 st_btime = 0x08
1921 st_xtime = 0x0f
1922 PPCODE:
1923 EXTEND (SP, 4);
1924 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1925 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1926 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1927 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1928
1929void
1930st_xtimensec ()
1931 ALIAS:
1932 st_atimensec = 0x01
1933 st_mtimensec = 0x02
1934 st_ctimensec = 0x04
1935 st_btimensec = 0x08
1936 st_xtimensec = 0x0f
1937 st_btimesec = 0x10
1938 st_gen = 0x20
1939 PPCODE:
1940 EXTEND (SP, 4);
1941 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1942 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1943 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1944 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1945 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1946 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1947
1948UV
1949major (UV dev)
1950 ALIAS:
1951 minor = 1
1952 CODE:
1953 RETVAL = ix ? minor (dev) : major (dev);
1954 OUTPUT:
1955 RETVAL
1956
1957UV
1958makedev (UV maj, UV min)
1959 CODE:
1960 RETVAL = makedev (maj, min);
1961 OUTPUT:
1962 RETVAL
1963
1964void
1965aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1966 PPCODE:
1967{
1968 dREQ;
1969
1970 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1971 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1972 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1973
1974 REQ_SEND;
1975}
1976
1977void
1978aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1979 PPCODE:
1980{
1981 dREQ;
1982
1983 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1984 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1985
1986 REQ_SEND;
1987}
1988
1989void
1990aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1991 PPCODE:
1992{
1993 dREQ;
1994
1995 req->int2 = mode;
1996 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1997
1998 REQ_SEND;
1999}
2000
2001void
2002aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
2003 PPCODE:
2004{
2005 dREQ;
2006
2007 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
2008 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
2009 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
2010
2011 REQ_SEND;
2012}
2013
2014void
2015aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
2016 PPCODE:
2017{
2018 dREQ;
2019
2020 req->type = EIO_READDIR;
2021 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
2022
2023 if (flags & EIO_READDIR_DENTS)
2024 req->int1 |= EIO_READDIR_CUSTOM2;
2025
2026 req_set_path1 (req, pathname);
2027
2028 REQ_SEND;
2029}
2030
2031void
2032aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
2033 PPCODE:
2034{
2035 dREQ;
2036
2037 req->type = EIO_MKDIR;
2038 req->int2 = mode;
2039 req_set_path1 (req, pathname);
2040
2041 REQ_SEND;
2042}
2043
2044void
1525aio_unlink (pathname,callback=&PL_sv_undef) 2045aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1526 SV8 * pathname
1527 SV * callback
1528 ALIAS: 2046 ALIAS:
1529 aio_unlink = REQ_UNLINK 2047 aio_unlink = EIO_UNLINK
1530 aio_rmdir = REQ_RMDIR 2048 aio_rmdir = EIO_RMDIR
1531 aio_readdir = REQ_READDIR 2049 aio_readdir = EIO_READDIR
1532 PPCODE: 2050 PPCODE:
1533{ 2051{
1534 dREQ; 2052 dREQ;
1535 2053
1536 req->type = ix; 2054 req->type = ix;
1537 req->sv1 = newSVsv (pathname); 2055 req_set_path1 (req, pathname);
1538 req->ptr1 = SvPVbyte_nolen (req->sv1);
1539 2056
1540 REQ_SEND; 2057 REQ_SEND;
1541} 2058}
1542 2059
1543void 2060void
1544aio_mkdir (pathname,mode,callback=&PL_sv_undef) 2061aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1545 SV8 * pathname 2062 ALIAS:
1546 UV mode 2063 aio_link = EIO_LINK
1547 SV * callback 2064 aio_symlink = EIO_SYMLINK
2065 aio_rename = EIO_RENAME
1548 PPCODE: 2066 PPCODE:
1549{ 2067{
1550 dREQ; 2068 eio_wd wd2 = 0;
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)
1562 SV8 * oldpath
1563 SV8 * newpath
1564 SV * callback
1565 ALIAS:
1566 aio_link = REQ_LINK
1567 aio_symlink = REQ_SYMLINK
1568 aio_rename = REQ_RENAME
1569 PPCODE:
1570{
1571 dREQ; 2069 dREQ;
1572 2070
1573 req->type = ix; 2071 req->type = ix;
1574 req->fh = newSVsv (oldpath); 2072 req_set_path1 (req, oldpath);
1575 req->ptr2 = SvPVbyte_nolen (req->fh); 2073 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1576 req->sv1 = newSVsv (newpath); 2074 req->int3 = (long)wd2;
1577 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 2075
1579 REQ_SEND; 2076 REQ_SEND;
1580} 2077}
1581 2078
1582void 2079void
1583aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 2080aio_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: 2081 PPCODE:
1589{ 2082{
2083 eio_wd wd2 = 0;
1590 dREQ; 2084 dREQ;
1591 2085
1592 req->type = REQ_MKNOD; 2086 req->type = EIO_RENAME;
1593 req->sv1 = newSVsv (pathname); 2087 req_set_path1 (req, oldpath);
1594 req->ptr1 = SvPVbyte_nolen (req->sv1); 2088 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1595 req->mode = (mode_t)mode; 2089 req->int2 = flags;
1596 req->offs = dev; 2090 req->int3 = (long)wd2;
1597 2091
1598 REQ_SEND; 2092 REQ_SEND;
1599} 2093}
1600 2094
1601void 2095void
1602aio_busy (delay,callback=&PL_sv_undef) 2096aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1603 double delay
1604 SV * callback
1605 PPCODE: 2097 PPCODE:
1606{ 2098{
1607 dREQ; 2099 dREQ;
1608 2100
1609 req->type = REQ_BUSY; 2101 req->type = EIO_MKNOD;
1610 req->int1 = delay < 0. ? 0 : delay; 2102 req->int2 = (mode_t)mode;
1611 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 2103 req->offs = dev;
1612 2104 req_set_path1 (req, pathname);
2105
1613 REQ_SEND; 2106 REQ_SEND;
1614} 2107}
1615 2108
1616void 2109void
1617aio_group (callback=&PL_sv_undef) 2110aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1618 SV * callback 2111 ALIAS:
1619 PROTOTYPE: ;$ 2112 aio_mtouch = EIO_MTOUCH
2113 aio_msync = EIO_MSYNC
1620 PPCODE: 2114 PPCODE:
1621{ 2115{
2116 STRLEN svlen;
2117 char *svptr = SvPVbyte (data, svlen);
2118 UV len = SvUV (length);
2119
2120 if (flags < 0)
2121 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2122
2123 if (offset < 0)
2124 offset += svlen;
2125
2126 if (offset < 0 || offset > svlen)
2127 croak ("offset outside of scalar");
2128
2129 if (!SvOK (length) || len + offset > svlen)
2130 len = svlen - offset;
2131
2132 {
2133 dREQ;
2134
2135 req->type = ix;
2136 req->sv2 = SvREFCNT_inc (data);
2137 req->ptr2 = (char *)svptr + offset;
2138 req->size = len;
2139 req->int1 = flags;
2140
2141 REQ_SEND;
2142 }
2143}
2144
2145void
2146aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2147 PPCODE:
2148{
2149 STRLEN svlen;
2150 char *svptr = SvPVbyte (data, svlen);
2151 UV len = SvUV (length);
2152
2153 if (offset < 0)
2154 offset += svlen;
2155
2156 if (offset < 0 || offset > svlen)
2157 croak ("offset outside of scalar");
2158
2159 if (!SvOK (length) || len + offset > svlen)
2160 len = svlen - offset;
2161
2162 {
2163 dREQ;
2164
2165 req->type = EIO_MLOCK;
2166 req->sv2 = SvREFCNT_inc (data);
2167 req->ptr2 = (char *)svptr + offset;
2168 req->size = len;
2169
2170 REQ_SEND;
2171 }
2172}
2173
2174void
2175aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2176 PPCODE:
2177{
2178 dREQ;
2179
2180 req->type = EIO_MLOCKALL;
2181 req->int1 = flags;
2182
2183 REQ_SEND;
2184}
2185
2186void
2187aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2188 PPCODE:
2189{
2190 int fd = s_fileno_croak (fh, 0);
1622 dREQ; 2191 dREQ;
1623 2192
1624 req->type = REQ_GROUP; 2193 req->type = EIO_CUSTOM;
2194 req->sv1 = newSVsv (fh);
2195 req->int1 = fd;
1625 2196
1626 req_send (req); 2197 req->feed = fiemap;
1627 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2198#if HAVE_FIEMAP
1628} 2199 /* keep our fingers crossed that the next two types are 64 bit */
2200 req->offs = start;
2201 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2202 req->int2 = flags;
2203 req->int3 = SvOK (count) ? SvIV (count) : -1;
2204#endif
1629 2205
2206 REQ_SEND;
2207}
2208
1630void 2209void
1631aio_nop (callback=&PL_sv_undef) 2210aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1632 SV * callback 2211 PPCODE:
2212{
2213 char *svptr = 0;
2214
2215 sv_clear_foreign (data);
2216
2217 if (length) /* known length, directly read into scalar */
2218 {
2219 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2220 svptr = sv_grow (data, length + 1);
2221 else if (SvCUR (data) < length)
2222 croak ("length outside of scalar, and cannot grow");
2223 else
2224 svptr = SvPVbyte_nolen (data);
2225 }
2226
2227 {
2228 dREQ;
2229
2230 req->type = EIO_SLURP;
2231 req_set_path1 (req, pathname);
2232 req->offs = offset;
2233 req->size = length;
2234 req->sv2 = SvREFCNT_inc (data);
2235 req->ptr2 = svptr;
2236
2237 if (!SvREADONLY (data))
2238 {
2239 SvREADONLY_on (data);
2240 req->flags |= FLAG_SV2_RO_OFF;
2241 }
2242
2243 REQ_SEND;
2244 }
2245}
2246
2247void
2248aio_busy (double delay, SV *callback = &PL_sv_undef)
1633 PPCODE: 2249 PPCODE:
1634{ 2250{
1635 dREQ; 2251 dREQ;
1636 2252
1637 req->type = REQ_NOP; 2253 req->type = EIO_BUSY;
2254 req->nv1 = delay < 0. ? 0. : delay;
1638 2255
1639 REQ_SEND; 2256 REQ_SEND;
1640} 2257}
1641 2258
2259void
2260aio_group (SV *callback = &PL_sv_undef)
2261 PPCODE:
2262{
2263 dREQ;
2264
2265 req->type = EIO_GROUP;
2266
2267 PUTBACK;
2268 req_submit (req);
2269 SPAGAIN;
2270
2271 XPUSHs (req_sv (req, aio_grp_stash));
2272}
2273
2274void
2275aio_nop (SV *callback = &PL_sv_undef)
2276 ALIAS:
2277 aio_nop = EIO_NOP
2278 aio_sync = EIO_SYNC
2279 PPCODE:
2280{
2281 dREQ;
2282
2283 req->type = ix;
2284
2285 REQ_SEND;
2286}
2287
1642int 2288int
1643aioreq_pri (int pri = 0) 2289aioreq_pri (int pri = NO_INIT)
1644 PROTOTYPE: ;$
1645 CODE: 2290 CODE:
1646 RETVAL = next_pri - PRI_BIAS; 2291 RETVAL = next_pri;
1647 if (items > 0) 2292 if (items > 0)
1648 { 2293 {
1649 if (pri < PRI_MIN) pri = PRI_MIN; 2294 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1650 if (pri > PRI_MAX) pri = PRI_MAX; 2295 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1651 next_pri = pri + PRI_BIAS; 2296 next_pri = pri;
1652 } 2297 }
1653 OUTPUT: 2298 OUTPUT:
1654 RETVAL 2299 RETVAL
1655 2300
1656void 2301void
1657aioreq_nice (int nice = 0) 2302aioreq_nice (int nice = 0)
1658 CODE: 2303 CODE:
1659 nice = next_pri - nice; 2304 nice = next_pri - nice;
1660 if (nice < PRI_MIN) nice = PRI_MIN; 2305 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1661 if (nice > PRI_MAX) nice = PRI_MAX; 2306 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1662 next_pri = nice + PRI_BIAS; 2307 next_pri = nice;
1663 2308
1664void 2309void
1665flush () 2310flush ()
1666 PROTOTYPE:
1667 CODE: 2311 CODE:
1668 while (nreqs) 2312 while (eio_nreqs ())
1669 { 2313 {
1670 poll_wait (); 2314 poll_wait ();
1671 poll_cb (); 2315 poll_cb ();
1672 } 2316 }
1673 2317
1674int 2318int
1675poll() 2319poll ()
1676 PROTOTYPE:
1677 CODE: 2320 CODE:
1678 poll_wait (); 2321 poll_wait ();
1679 RETVAL = poll_cb (); 2322 RETVAL = poll_cb ();
1680 OUTPUT: 2323 OUTPUT:
1681 RETVAL 2324 RETVAL
1682 2325
1683int 2326int
1684poll_fileno() 2327poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 2328 CODE:
1687 RETVAL = respipe [0]; 2329 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 2330 OUTPUT:
1689 RETVAL 2331 RETVAL
1690 2332
1691int 2333int
1692poll_cb(...) 2334poll_cb (...)
1693 PROTOTYPE: 2335 PROTOTYPE:
1694 CODE: 2336 CODE:
1695 RETVAL = poll_cb (); 2337 RETVAL = poll_cb ();
1696 OUTPUT: 2338 OUTPUT:
1697 RETVAL 2339 RETVAL
1698 2340
1699void 2341void
1700poll_wait() 2342poll_wait ()
2343 CODE:
2344 poll_wait ();
2345
2346int
2347nreqs ()
2348 CODE:
2349 RETVAL = eio_nreqs ();
2350 OUTPUT:
2351 RETVAL
2352
2353int
2354nready ()
2355 CODE:
2356 RETVAL = eio_nready ();
2357 OUTPUT:
2358 RETVAL
2359
2360int
2361npending ()
2362 CODE:
2363 RETVAL = eio_npending ();
2364 OUTPUT:
2365 RETVAL
2366
2367int
2368nthreads ()
2369 CODE:
2370 RETVAL = eio_nthreads ();
2371 OUTPUT:
2372 RETVAL
2373
2374int
2375fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2376 CODE:
2377 RETVAL = posix_fadvise (fh, offset, length, advice);
2378 OUTPUT:
2379 RETVAL
2380
2381IV
2382sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2383 CODE:
2384 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2385 OUTPUT:
2386 RETVAL
2387
2388void
2389mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2390 PPCODE:
2391 sv_clear_foreign (scalar);
2392{
2393 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2394 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2395 if (addr == (void *)-1)
2396 XSRETURN_NO;
2397
2398 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2399
2400 if (!(prot & PROT_WRITE))
2401 SvREADONLY_on (scalar);
2402
2403 XSRETURN_YES;
2404}
2405
2406void
2407munmap (SV *scalar)
2408 CODE:
2409 sv_clear_foreign (scalar);
2410
2411SV *
2412mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2413 CODE:
2414{
2415 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2416 void *new;
2417
2418 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2419 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2420
2421 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2422
2423 RETVAL = &PL_sv_no;
2424
2425 if (new != (void *)-1)
2426 {
2427 RETVAL = new == (void *)mg->mg_ptr
2428 ? newSVpvn ("0 but true", 10)
2429 : &PL_sv_yes;
2430
2431 mg->mg_ptr = (char *)new;
2432 mg->mg_obj = (SV *)new_length;
2433
2434 SvPVX (scalar) = mg->mg_ptr;
2435 SvCUR_set (scalar, new_length);
2436 }
2437}
2438 OUTPUT:
2439 RETVAL
2440
2441int
2442madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2443 ALIAS:
2444 mprotect = 1
2445 CODE:
2446{
2447 STRLEN svlen;
2448 void *addr = SvPVbyte (scalar, svlen);
2449 STRLEN len = SvUV (length);
2450
2451 if (offset < 0)
2452 offset += svlen;
2453
2454 if (offset < 0 || offset > svlen)
2455 croak ("offset outside of scalar");
2456
2457 if (!SvOK (length) || len + offset > svlen)
2458 len = svlen - offset;
2459
2460 addr = (void *)(((intptr_t)addr) + offset);
2461 eio_page_align (&addr, &len);
2462
2463 switch (ix)
2464 {
2465 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2466 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2467 }
2468}
2469 OUTPUT:
2470 RETVAL
2471
2472int
2473munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2474 CODE:
2475{
2476 STRLEN svlen;
2477 void *addr = SvPVbyte (scalar, svlen);
2478 size_t len = SvUV (length);
2479
2480 if (offset < 0)
2481 offset += svlen;
2482
2483 if (offset < 0 || offset > svlen)
2484 croak ("offset outside of scalar");
2485
2486 if (!SvOK (length) || len + offset > svlen)
2487 len = svlen - offset;
2488
2489 addr = (void *)(((intptr_t)addr) + offset);
2490 eio_page_align (&addr, &len);
2491#if _POSIX_MEMLOCK_RANGE
2492 RETVAL = munlock (addr, len);
2493#else
2494 RETVAL = EIO_ENOSYS ();
2495#endif
2496}
2497 OUTPUT:
2498 RETVAL
2499
2500int
2501mlockall (int flags)
2502 PROTOTYPE: $;
2503 CODE:
2504 RETVAL = eio_mlockall_sync (flags);
2505 OUTPUT:
2506 RETVAL
2507
2508int
2509munlockall ()
2510 CODE:
2511#if _POSIX_MEMLOCK
2512 munlockall ();
2513#else
2514 RETVAL = EIO_ENOSYS ();
2515#endif
2516 OUTPUT:
2517 RETVAL
2518
2519int
2520statx (SV8 *pathname, int flags, UV mask)
2521 CODE:
2522{
2523 /* undocumented, and might go away, and anyway, should use eio_statx */
2524 SV *wdsv = 0;
2525 SV *pathsv = 0;
2526 eio_wd wd = EIO_CWD;
2527 void *ptr;
2528 int res;
2529
2530 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2531 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2532
2533 SvREFCNT_dec (pathsv);
2534 SvREFCNT_dec (wdsv);
2535}
2536 OUTPUT:
2537 RETVAL
2538
2539U32
2540stx_mode ()
1701 PROTOTYPE: 2541 PROTOTYPE:
1702 CODE: 2542 CODE:
1703 poll_wait (); 2543#if HAVE_STATX
2544 RETVAL = stx.stx_mode;
2545#else
2546 XSRETURN_UNDEF;
2547#endif
2548 OUTPUT:
2549 RETVAL
1704 2550
2551#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2552#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2553#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2554#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2555#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2556#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2557#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2558#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2559#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2560#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2561#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2562#define STATX_OFFSET_size statx_offsetof (stx_size)
2563#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2564#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2565#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2566#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2567#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2568#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2569
2570U32
2571stx_mask ()
2572 PROTOTYPE:
2573 ALIAS:
2574 stx_mask = STATX_OFFSET_mask
2575 stx_blksize = STATX_OFFSET_blksize
2576 stx_nlink = STATX_OFFSET_nlink
2577 stx_uid = STATX_OFFSET_uid
2578 stx_gid = STATX_OFFSET_gid
2579 stx_rdev_major = STATX_OFFSET_rdev_major
2580 stx_rdev_minor = STATX_OFFSET_rdev_minor
2581 stx_dev_major = STATX_OFFSET_dev_major
2582 stx_dev_minor = STATX_OFFSET_dev_minor
2583 CODE:
2584#if HAVE_STATX
2585 RETVAL = *(__u32 *)((char *)&stx + ix);
2586#else
2587 XSRETURN_UNDEF;
2588#endif
2589 OUTPUT:
2590 RETVAL
2591
2592VAL64
2593stx_attributes ()
2594 PROTOTYPE:
2595 ALIAS:
2596 stx_attributes = STATX_OFFSET_attributes
2597 stx_ino = STATX_OFFSET_ino
2598 stx_size = STATX_OFFSET_size
2599 stx_blocks = STATX_OFFSET_blocks
2600 stx_attributes_mask = STATX_OFFSET_attributes_mask
2601 CODE:
2602#if HAVE_STATX
2603 RETVAL = *(__u64 *)((char *)&stx + ix);
2604#else
2605 XSRETURN_UNDEF;
2606#endif
2607 OUTPUT:
2608 RETVAL
2609
2610NV
2611stx_atime ()
2612 PROTOTYPE:
2613 ALIAS:
2614 stx_atime = STATX_OFFSET_atime
2615 stx_btime = STATX_OFFSET_btime
2616 stx_ctime = STATX_OFFSET_ctime
2617 stx_mtime = STATX_OFFSET_mtime
2618 CODE:
2619#if HAVE_STATX
2620 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2621 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2622#else
2623 XSRETURN_UNDEF;
2624#endif
2625 OUTPUT:
2626 RETVAL
2627
2628VAL64
2629stx_atimesec ()
2630 PROTOTYPE:
2631 ALIAS:
2632 stx_atimesec = STATX_OFFSET_atime
2633 stx_btimesec = STATX_OFFSET_btime
2634 stx_ctimesec = STATX_OFFSET_ctime
2635 stx_mtimesec = STATX_OFFSET_mtime
2636 CODE:
2637#if HAVE_STATX
2638 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2639 RETVAL = ts->tv_sec;
2640#else
2641 XSRETURN_UNDEF;
2642#endif
2643 OUTPUT:
2644 RETVAL
2645
2646U32
2647stx_atimensec ()
2648 PROTOTYPE:
2649 ALIAS:
2650 stx_atimensec = STATX_OFFSET_atime
2651 stx_btimensec = STATX_OFFSET_btime
2652 stx_ctimensec = STATX_OFFSET_ctime
2653 stx_mtimensec = STATX_OFFSET_mtime
2654 CODE:
2655#if HAVE_STATX
2656 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2657 RETVAL = ts->tv_nsec;
2658#else
2659 RETVAL = 0;
2660#endif
2661 OUTPUT:
2662 RETVAL
2663
1705void 2664void
1706setsig (int signum = SIGIO) 2665accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2666 PPCODE:
2667{
2668 SV *retval;
2669#if HAVE_ACCEPT4
2670 socklen_t salen_ = salen ? salen + 1 : 0;
2671
2672 if (salen)
2673 {
2674 sv_upgrade (sockaddr, SVt_PV);
2675 sv_grow (sockaddr, salen_);
2676 }
2677
2678 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2679
2680 retval = newmortalFH (res, O_RDWR);
2681
2682 if (res >= 0 && salen > 0)
2683 {
2684 if (salen_ > salen + 1)
2685 salen_ = salen + 1;
2686
2687 SvPOK_only (sockaddr);
2688 SvCUR_set (sockaddr, salen_);
2689 }
2690#else
2691 errno = ENOSYS;
2692 retval = &PL_sv_undef;
2693#endif
2694 XPUSHs (retval);
2695}
2696
2697ssize_t
2698splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2699 CODE:
2700{
2701#if HAVE_LINUX_SPLICE
2702 loff_t off_in_, off_out_;
2703 RETVAL = splice (
2704 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2705 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2706 length, flags
2707 );
2708#else
2709 RETVAL = EIO_ENOSYS ();
2710#endif
2711}
2712 OUTPUT:
2713 RETVAL
2714
2715ssize_t
2716tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2717 CODE:
2718#if HAVE_LINUX_SPLICE
2719 RETVAL = tee (rfh, wfh, length, flags);
2720#else
2721 RETVAL = EIO_ENOSYS ();
2722#endif
2723 OUTPUT:
2724 RETVAL
2725
2726int
2727pipesize (aio_rfd rfh, int new_size = -1)
2728 PROTOTYPE: $;$
2729 CODE:
2730#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2731 if (new_size >= 0)
2732 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2733 else
2734 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2735#else
2736 errno = ENOSYS;
2737 RETVAL = -1;
2738#endif
2739 OUTPUT:
2740 RETVAL
2741
2742void
2743pipe2 (int flags = 0)
1707 PROTOTYPE: ;$ 2744 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: 2745 PPCODE:
1726{ 2746{
1727 int count; 2747 int fd[2];
2748 int res;
1728 2749
1729 block_sig (); 2750 if (flags)
1730 PUSHMARK (SP); 2751#if HAVE_PIPE2
1731 PUTBACK; 2752 res = pipe2 (fd, flags);
1732 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2753#else
1733 SPAGAIN; 2754 res = (errno = ENOSYS, -1);
1734 unblock_sig (); 2755#endif
2756 else
2757 res = pipe (fd);
1735 2758
1736 if (SvTRUE (ERRSV)) 2759 if (!res)
1737 croak (0); 2760 {
2761 EXTEND (SP, 2);
2762 PUSHs (newmortalFH (fd[0], O_RDONLY));
2763 PUSHs (newmortalFH (fd[1], O_WRONLY));
2764 }
2765}
1738 2766
1739 XSRETURN (count); 2767void
2768pidfd_open (int pid, unsigned int flags = 0)
2769 PPCODE:
2770{
2771 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2772 int fd = syscall (SYS_pidfd_open, pid, flags);
2773 XPUSHs (newmortalFH (fd, O_RDWR));
1740} 2774}
1741 2775
1742int 2776int
1743nreqs() 2777pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1744 PROTOTYPE: 2778 PPCODE:
2779{
2780 int res;
2781#if HAVE_SIGINFO_T
2782 siginfo_t si = { 0 };
2783
2784 if (SvOK (siginfo))
2785 {
2786 HV *hv;
2787 SV **svp;
2788
2789 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2790 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2791
2792 hv = (HV *)SvRV (siginfo);
2793
2794 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2795 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2796 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2797 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2798 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2799 }
2800
2801 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2802 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2803#else
2804 res = (errno = ENOSYS, -1);
2805#endif
2806
2807 XPUSHs (sv_2mortal (newSViv (res)));
2808}
2809
2810void
2811pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2812 PPCODE:
2813{
2814 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2815 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2816 XPUSHs (newmortalFH (fd, O_RDWR));
2817}
2818
2819void
2820eventfd (unsigned int initval = 0, int flags = 0)
2821 PPCODE:
2822{
2823 int fd;
2824#if HAVE_EVENTFD
2825 fd = eventfd (initval, flags);
2826#else
2827 fd = (errno = ENOSYS, -1);
2828#endif
2829
2830 XPUSHs (newmortalFH (fd, O_RDWR));
2831}
2832
2833void
2834timerfd_create (int clockid, int flags = 0)
2835 PPCODE:
2836{
2837 int fd;
2838#if HAVE_TIMERFD
2839 fd = timerfd_create (clockid, flags);
2840#else
2841 fd = (errno = ENOSYS, -1);
2842#endif
2843
2844 XPUSHs (newmortalFH (fd, O_RDWR));
2845}
2846
2847void
2848timerfd_settime (SV *fh, int flags, NV interval, NV value)
2849 PPCODE:
2850{
2851 int fd = s_fileno_croak (fh, 0);
2852#if HAVE_TIMERFD
2853 int res;
2854 struct itimerspec its, ots;
2855
2856 ts_set (&its.it_interval, interval);
2857 ts_set (&its.it_value , value);
2858 res = timerfd_settime (fd, flags, &its, &ots);
2859
2860 if (!res)
2861 {
2862 EXTEND (SP, 2);
2863 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2864 PUSHs (newSVnv (ts_get (&ots.it_value)));
2865 }
2866#else
2867 errno = ENOSYS;
2868#endif
2869}
2870
2871void
2872timerfd_gettime (SV *fh)
2873 PPCODE:
2874{
2875 int fd = s_fileno_croak (fh, 0);
2876#if HAVE_TIMERFD
2877 int res;
2878 struct itimerspec ots;
2879 res = timerfd_gettime (fd, &ots);
2880
2881 if (!res)
2882 {
2883 EXTEND (SP, 2);
2884 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2885 PUSHs (newSVnv (ts_get (&ots.it_value)));
2886 }
2887#else
2888 errno = ENOSYS;
2889#endif
2890}
2891
2892void
2893memfd_create (octet_string pathname, int flags = 0)
2894 PPCODE:
2895{
2896 int fd;
2897#if HAVE_MEMFD_CREATE
2898 fd = memfd_create (pathname, flags);
2899#else
2900 fd = (errno = ENOSYS, -1);
2901#endif
2902
2903 XPUSHs (newmortalFH (fd, O_RDWR));
2904}
2905
2906int
2907fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
1745 CODE: 2908 CODE:
1746 RETVAL = nreqs; 2909{
2910 int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
2911 char **envp, **argv;
2912 argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
2913 if (!SvOK (envs))
2914 {
2915 extern char **environ;
2916 envp = environ;
2917 }
2918 else
2919 envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
2920#if _POSIX_VERSION >= 200809L
2921 RETVAL = fexecve (fd, argv, envp);
2922#else
2923 RETVAL = (errno = ENOSYS, -1);
2924#endif
2925}
2926 OUTPUT: RETVAL
2927
2928int
2929mount (octet_string special, octet_string path, octet_string fstype, UV flags = 0, octet_string_ornull data = 0)
2930 CODE:
2931#if HAVE_MOUNT
2932 RETVAL = mount (special, path, fstype, flags, data);
2933#else
2934 RETVAL = (errno = ENOSYS, -1);
2935#endif
2936 OUTPUT: RETVAL
2937
2938int
2939umount (octet_string path, int flags = 0)
2940 CODE:
2941 if (flags)
2942#if HAVE_UMOUNT2
2943 RETVAL = umount2 (path, flags);
2944#else
2945 RETVAL = (errno = ENOSYS, -1);
2946#endif
2947 else
2948#if HAVE_UMOUNT
2949 RETVAL = umount (path);
2950#else
2951 RETVAL = (errno = ENOSYS, -1);
2952#endif
2953 OUTPUT: RETVAL
2954
2955UV
2956get_fdlimit ()
2957 CODE:
2958#if HAVE_RLIMITS
2959 struct rlimit rl;
2960 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2961 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2962#endif
2963 XSRETURN_UNDEF;
1747 OUTPUT: 2964 OUTPUT:
1748 RETVAL 2965 RETVAL
1749 2966
1750int 2967void
1751nready() 2968min_fdlimit (UV limit = 0x7fffffffU)
1752 PROTOTYPE:
1753 CODE: 2969 CODE:
1754 RETVAL = get_nready (); 2970{
1755 OUTPUT: 2971#if HAVE_RLIMITS
1756 RETVAL 2972 struct rlimit rl;
2973 rlim_t orig_rlim_max;
2974 UV bit;
1757 2975
1758int 2976 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1759npending() 2977 goto fail;
1760 PROTOTYPE: 2978
2979 if (rl.rlim_cur == RLIM_INFINITY)
2980 XSRETURN_YES;
2981
2982 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2983
2984 if (rl.rlim_cur < limit)
2985 {
2986 rl.rlim_cur = limit;
2987
2988 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2989 rl.rlim_max = rl.rlim_cur;
2990 }
2991
2992 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2993 XSRETURN_YES;
2994
2995 if (errno == EPERM)
2996 {
2997 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2998 /* our limit overflows a system-wide limit */
2999 /* try an adaptive algorithm, but do not lower the hardlimit */
3000 rl.rlim_max = 0;
3001 for (bit = 0x40000000U; bit; bit >>= 1)
3002 {
3003 rl.rlim_max |= bit;
3004 rl.rlim_cur = rl.rlim_max;
3005
3006 /* never decrease the hard limit */
3007 if (rl.rlim_max < orig_rlim_max)
3008 break;
3009
3010 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
3011 rl.rlim_max &= ~bit; /* too high, remove bit again */
3012 }
3013
3014 /* now, raise the soft limit to the max permitted */
3015 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
3016 {
3017 rl.rlim_cur = rl.rlim_max;
3018 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
3019 errno = EPERM;
3020 }
3021 }
3022#endif
3023 fail:
3024 XSRETURN_UNDEF;
3025}
3026
3027void _on_next_submit (SV *cb)
1761 CODE: 3028 CODE:
1762 RETVAL = get_npending (); 3029 SvREFCNT_dec (on_next_submit);
1763 OUTPUT: 3030 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1764 RETVAL
1765 3031
1766int 3032PROTOTYPES: DISABLE
1767nthreads() 3033
1768 PROTOTYPE: 3034MODULE = IO::AIO PACKAGE = IO::AIO::WD
3035
3036BOOT:
3037{
3038 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
3039 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
3040}
3041
3042void
3043DESTROY (SV *self)
1769 CODE: 3044 CODE:
1770 if (WORDACCESS_UNSAFE) LOCK (wrklock); 3045{
1771 RETVAL = started; 3046 aio_wd wd = SvAIO_WD (self);
1772 if (WORDACCESS_UNSAFE) UNLOCK (wrklock); 3047#if HAVE_AT
1773 OUTPUT: 3048 {
1774 RETVAL 3049 SV *callback = &PL_sv_undef;
1775 3050 dREQ; /* clobbers next_pri :/ */
1776PROTOTYPES: DISABLE 3051 next_pri = req->pri; /* restore next_pri */
3052 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
3053 req->type = EIO_WD_CLOSE;
3054 req->wd = wd;
3055 REQ_SEND;
3056 }
3057#else
3058 eio_wd_close_sync (wd);
3059#endif
3060}
1777 3061
1778MODULE = IO::AIO PACKAGE = IO::AIO::REQ 3062MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1779 3063
1780void 3064void
1781cancel (aio_req_ornot req) 3065cancel (aio_req_ornot req)
1782 CODE: 3066 CODE:
1783 req_cancel (req); 3067 eio_cancel (req);
1784 3068
1785void 3069void
1786cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 3070cb (aio_req_ornot req, SV *callback = NO_INIT)
1787 CODE: 3071 PPCODE:
3072{
3073 if (GIMME_V != G_VOID)
3074 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
3075
3076 if (items > 1)
3077 {
3078 SV *cb_cv = get_cb (callback);
3079
1788 SvREFCNT_dec (req->callback); 3080 SvREFCNT_dec (req->callback);
1789 req->callback = newSVsv (callback); 3081 req->callback = SvREFCNT_inc (cb_cv);
3082 }
3083}
1790 3084
1791MODULE = IO::AIO PACKAGE = IO::AIO::GRP 3085MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1792 3086
1793void 3087void
1794add (aio_req grp, ...) 3088add (aio_req grp, ...)
1795 PPCODE: 3089 PPCODE:
1796{ 3090{
1797 int i; 3091 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 3092
1803 if (grp->int1 == 2) 3093 if (grp->int1 == 2)
1804 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 3094 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1805 3095
1806 for (i = 1; i < items; ++i ) 3096 for (i = 1; i < items; ++i )
1807 { 3097 {
3098 aio_req req;
3099
1808 if (GIMME_V != G_VOID) 3100 if (GIMME_V != G_VOID)
1809 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 3101 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1810 3102
1811 req = SvAIO_REQ (ST (i)); 3103 req = SvAIO_REQ (ST (i));
1812 3104
1813 if (req) 3105 if (req)
1814 { 3106 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 } 3107 }
1827} 3108}
1828 3109
1829void 3110void
1830cancel_subs (aio_req_ornot req) 3111cancel_subs (aio_req_ornot req)
… …
1839 AV *av; 3120 AV *av;
1840 3121
1841 grp->errorno = errno; 3122 grp->errorno = errno;
1842 3123
1843 av = newAV (); 3124 av = newAV ();
3125 av_extend (av, items - 1);
1844 3126
1845 for (i = 1; i < items; ++i ) 3127 for (i = 1; i < items; ++i )
1846 av_push (av, newSVsv (ST (i))); 3128 av_push (av, newSVsv (ST (i)));
1847 3129
1848 SvREFCNT_dec (grp->sv1); 3130 SvREFCNT_dec (grp->sv1);
… …
1855 grp->errorno = errorno; 3137 grp->errorno = errorno;
1856 3138
1857void 3139void
1858limit (aio_req grp, int limit) 3140limit (aio_req grp, int limit)
1859 CODE: 3141 CODE:
1860 grp->int2 = limit; 3142 eio_grp_limit (grp, limit);
1861 aio_grp_feed (grp);
1862 3143
1863void 3144void
1864feed (aio_req grp, SV *callback=&PL_sv_undef) 3145feed (aio_req grp, SV *callback = &PL_sv_undef)
1865 CODE: 3146 CODE:
1866{ 3147{
1867 SvREFCNT_dec (grp->sv2); 3148 SvREFCNT_dec (grp->sv2);
1868 grp->sv2 = newSVsv (callback); 3149 grp->sv2 = newSVsv (callback);
3150 grp->feed = aio_grp_feed;
1869 3151
1870 if (grp->int2 <= 0) 3152 if (grp->int2 <= 0)
1871 grp->int2 = 2; 3153 grp->int2 = 2;
1872 3154
1873 aio_grp_feed (grp); 3155 eio_grp_limit (grp, grp->int2);
1874} 3156}
1875 3157

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