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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.99 by root, Fri Jun 1 05:51:21 2007 UTC vs.
Revision 1.290 by root, Sun Feb 7 13:13:44 2021 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
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
85#else
86
87 #include <sys/time.h>
88 #include <sys/select.h>
89 #include <sys/wait.h>
90 #include <unistd.h>
23#include <utime.h> 91 #include <utime.h>
92 #include <signal.h>
24 93
25#if HAVE_SENDFILE 94 #define EIO_STRUCT_STAT Stat_t
26# if __linux 95
27# include <sys/sendfile.h> 96#endif
28# elif __freebsd 97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
29# include <sys/socket.h> 114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
30# include <sys/uio.h> 124# include <sys/uio.h>
31# elif __hpux 125#endif
32# include <sys/socket.h> 126
33# elif __solaris /* not yet */ 127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
157
158#include "schmorp.h"
159
160#if HAVE_EVENTFD
34# include <sys/sendfile.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
166#endif
167
168#if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171#endif
172
173typedef SV SV8; /* byte-sv, used for argument-checking */
174typedef int aio_rfd; /* read file desriptor */
175typedef int aio_wfd; /* write file descriptor */
176
177static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179#define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186#define EIO_NO_WRAPPERS 1
187
188#include "libeio/eio.h"
189
190static int req_invoke (eio_req *req);
191#define EIO_FINISH(req) req_invoke (req)
192static void req_destroy (eio_req *grp);
193#define EIO_DESTROY(req) req_destroy (req)
194
195#include "libeio/eio.c"
196
197#if !HAVE_POSIX_FADVISE
198# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199#endif
200
201#if !HAVE_POSIX_MADVISE
202# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203#endif
204
205#ifndef MAP_ANONYMOUS
206# ifdef MAP_ANON
207# define MAP_ANONYMOUS MAP_ANON
35# else 208# else
36# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 210# endif
38#endif 211#endif
39 212
40/* number of seconds after which idle threads exit */ 213#ifndef makedev
41#define IDLE_TIMEOUT 10 214# define makedev(maj,min) (((maj) << 8) | (min))
42
43/* used for struct dirent, AIX doesn't provide it */
44#ifndef NAME_MAX
45# define NAME_MAX 4096
46#endif 215#endif
216#ifndef major
217# define major(dev) ((dev) >> 8)
218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
47 222
48/* buffer size for various temporary buffers */ 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
49#define AIO_BUFSIZE 65536 224#ifdef __sun
225# undef PAGESIZE
226#endif
50 227
51#define dBUF \ 228#if PAGESIZE <= 0
52 char *aio_buf; \ 229# define PAGESIZE sysconf (_SC_PAGESIZE)
53 LOCK (wrklock); \ 230#endif
54 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 231
55 UNLOCK (wrklock); \ 232/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
56 if (!aio_buf) \ 233#ifdef __sun
234# undef HAVE_SYSCALL
235#endif
236
237#if HAVE_SYSCALL
238#include <sys/syscall.h>
239#else
240# define syscall(nr,...) (errno = ENOSYS, -1)
241#endif
242
243/*****************************************************************************/
244
245#if !_POSIX_MAPPED_FILES
246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
247# define munmap(addr,length) EIO_ENOSYS ()
248#endif
249
250#if !_POSIX_MEMORY_PROTECTION
251# define mprotect(addr,len,prot) EIO_ENOSYS ()
252#endif
253
254#if !MREMAP_MAYMOVE
255# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
256#endif
257
258#define FOREIGN_MAGIC PERL_MAGIC_ext
259
260static int ecb_cold
261mmap_free (pTHX_ SV *sv, MAGIC *mg)
262{
263 int old_errno = errno;
264 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
265 errno = old_errno;
266
267 mg->mg_obj = 0; /* just in case */
268
269 SvREADONLY_off (sv);
270
271 if (SvPVX (sv) != mg->mg_ptr)
272 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
273
274 SvCUR_set (sv, 0);
275 SvPVX (sv) = 0;
276 SvOK_off (sv);
277
57 return -1; 278 return 0;
279}
58 280
59typedef SV SV8; /* byte-sv, used for argument-checking */ 281static MGVTBL mmap_vtbl = {
60 282 0, 0, 0, 0, mmap_free
61enum {
62 REQ_QUIT,
63 REQ_OPEN, REQ_CLOSE,
64 REQ_READ, REQ_WRITE, REQ_READAHEAD,
65 REQ_SENDFILE,
66 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
67 REQ_UTIME, REQ_FUTIME, /* must be consecutive */
68 REQ_CHMOD, REQ_FCHMOD, /* must be consecutive */
69 REQ_CHOWN, REQ_FCHOWN, /* must be consecutive */
70 REQ_FSYNC, REQ_FDATASYNC,
71 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
72 REQ_MKNOD, REQ_READDIR,
73 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
74 REQ_GROUP, REQ_NOP,
75 REQ_BUSY,
76}; 283};
77 284
78#define AIO_REQ_KLASS "IO::AIO::REQ" 285static int ecb_cold
79#define AIO_GRP_KLASS "IO::AIO::GRP" 286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
80
81typedef struct aio_cb
82{ 287{
83 struct aio_cb *volatile next; 288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
84 290
85 SV *callback; 291 SvREADONLY_off (sv);
86 SV *sv1, *sv2;
87 void *ptr1, *ptr2;
88 off_t offs;
89 size_t size;
90 ssize_t result;
91 double nv1, nv2;
92 292
93 STRLEN stroffset; 293 if (SvPVX (sv) != mg->mg_ptr)
94 int type; 294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
95 int int1, int2, int3;
96 int errorno;
97 mode_t mode; /* open */
98 295
99 unsigned char flags; 296 SvCUR_set (sv, 0);
100 unsigned char pri; 297 SvPVX (sv) = 0;
298 SvOK_off (sv);
101 299
102 SV *self; /* the perl counterpart of this request, if any */ 300 return 0;
103 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 301}
104} aio_cb;
105 302
106enum { 303static MGVTBL sysfree_vtbl = {
107 FLAG_CANCELLED = 0x01, /* request was cancelled */ 304 0, 0, 0, 0, sysfree_free
108 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
109 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
110}; 305};
111 306
112typedef aio_cb *aio_req; 307/*****************************************************************************/
113typedef aio_cb *aio_req_ornot;
114 308
115enum { 309/* helper: set scalar to foreign ptr with custom free */
116 PRI_MIN = -4, 310ecb_noinline
117 PRI_MAX = 4, 311static void
118 312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
119 DEFAULT_PRI = 0,
120 PRI_BIAS = -PRI_MIN,
121 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
122};
123
124#define AIO_TICKS ((1000000 + 1023) >> 10)
125
126static unsigned int max_poll_time = 0;
127static unsigned int max_poll_reqs = 0;
128
129/* calculcate time difference in ~1/AIO_TICKS of a second */
130static int tvdiff (struct timeval *tv1, struct timeval *tv2)
131{ 313{
132 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 314 sv_force_normal (sv);
133 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
134}
135 315
136static thread_t main_tid; 316 /* we store the length in mg_obj, as namlen is I32 :/ */
137static int main_sig; 317 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
138static int block_sig_level; 318 ->mg_obj = (SV *)length;
139 319
140void block_sig () 320 SvUPGRADE (sv, SVt_PV); /* nop... */
141{
142 sigset_t ss;
143 321
144 if (block_sig_level++) 322 if (SvLEN (sv))
323 Safefree (SvPVX (sv));
324
325 SvPVX (sv) = (char *)addr;
326 SvCUR_set (sv, length);
327 SvLEN_set (sv, 0);
328 SvPOK_only (sv);
329}
330
331static void
332sv_clear_foreign (SV *sv)
333{
334 /* todo: iterate over magic and only free ours, but of course */
335 /* the perl5porters will call that (correct) behaviour buggy */
336 sv_unmagic (sv, FOREIGN_MAGIC);
337}
338
339/*****************************************************************************/
340
341/* defines all sorts of constants to 0 unless they are already defined */
342/* also provides const_iv_ and const_niv_ macros for them */
343#include "def0.h"
344
345/*****************************************************************************/
346
347static void
348fiemap (eio_req *req)
349{
350 req->result = -1;
351
352#if HAVE_FIEMAP
353 /* assume some c99 */
354 struct fiemap *fiemap = 0;
355 size_t end_offset;
356 int count = req->int3;
357
358 req->flags |= EIO_FLAG_PTR1_FREE;
359
360 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
361 /* increase in fixed steps */
362 if (count < 0)
363 count = 8;
364
365 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
366 errno = ENOMEM;
367 if (!fiemap)
145 return; 368 return;
146 369
147 if (!main_sig) 370 req->ptr1 = fiemap;
371
372 fiemap->fm_start = req->offs;
373 fiemap->fm_length = req->size;
374 fiemap->fm_flags = req->int2;
375 fiemap->fm_extent_count = count;
376
377 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
148 return; 378 return;
149 379
150 sigemptyset (&ss); 380 if (req->int3 >= 0 /* not autosizing */
151 sigaddset (&ss, main_sig); 381 || !fiemap->fm_mapped_extents /* no more extents */
152 pthread_sigmask (SIG_BLOCK, &ss, 0); 382 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
153} 383 goto done;
154 384
155void unblock_sig () 385 /* else we have to loop -
156{ 386 * it would be tempting (actually I tried that first) to just query the
157 sigset_t ss; 387 * number of extents needed, but linux often feels like not returning all
388 * extents, without telling us it left any out. this complicates
389 * this quite a bit.
390 */
158 391
159 if (--block_sig_level) 392 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
160 return;
161 393
162 if (!main_sig) 394 for (;;)
163 return;
164
165 sigemptyset (&ss);
166 sigaddset (&ss, main_sig);
167 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
168}
169
170static int next_pri = DEFAULT_PRI + PRI_BIAS;
171
172static unsigned int started, idle, wanted;
173
174/* worker threads management */
175static mutex_t wrklock = MUTEX_INIT;
176
177typedef struct worker {
178 /* locked by wrklock */
179 struct worker *prev, *next;
180
181 thread_t tid;
182
183 /* locked by reslock, reqlock or wrklock */
184 aio_req req; /* currently processed request */
185 void *dbuf;
186 DIR *dirp;
187} worker;
188
189static worker wrk_first = { &wrk_first, &wrk_first, 0 };
190
191static void worker_clear (worker *wrk)
192{
193 if (wrk->dirp)
194 { 395 {
195 closedir (wrk->dirp); 396 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
196 wrk->dirp = 0; 397 char scratch[3072];
197 } 398 struct fiemap *incmap = (struct fiemap *)scratch;
198 399
199 if (wrk->dbuf) 400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
200 { 401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
201 free (wrk->dbuf); 402 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
202 wrk->dbuf = 0; 403 incmap->fm_flags = fiemap->fm_flags;
203 } 404 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
204}
205 405
206static void worker_free (worker *wrk) 406 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
207{
208 wrk->next->prev = wrk->prev;
209 wrk->prev->next = wrk->next;
210
211 free (wrk);
212}
213
214static volatile unsigned int nreqs, nready, npending;
215static volatile unsigned int max_idle = 4;
216static volatile unsigned int max_outstanding = 0xffffffff;
217static int respipe [2];
218
219static mutex_t reslock = MUTEX_INIT;
220static mutex_t reqlock = MUTEX_INIT;
221static cond_t reqwait = COND_INIT;
222
223#if WORDACCESS_UNSAFE
224
225static unsigned int get_nready ()
226{
227 unsigned int retval;
228
229 LOCK (reqlock);
230 retval = nready;
231 UNLOCK (reqlock);
232
233 return retval;
234}
235
236static unsigned int get_npending ()
237{
238 unsigned int retval;
239
240 LOCK (reslock);
241 retval = npending;
242 UNLOCK (reslock);
243
244 return retval;
245}
246
247static unsigned int get_nthreads ()
248{
249 unsigned int retval;
250
251 LOCK (wrklock);
252 retval = started;
253 UNLOCK (wrklock);
254
255 return retval;
256}
257
258#else
259
260# define get_nready() nready
261# define get_npending() npending
262# define get_nthreads() started
263
264#endif
265
266/*
267 * a somewhat faster data structure might be nice, but
268 * with 8 priorities this actually needs <20 insns
269 * per shift, the most expensive operation.
270 */
271typedef struct {
272 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
273 int size;
274} reqq;
275
276static reqq req_queue;
277static reqq res_queue;
278
279int reqq_push (reqq *q, aio_req req)
280{
281 int pri = req->pri;
282 req->next = 0;
283
284 if (q->qe[pri])
285 {
286 q->qe[pri]->next = req;
287 q->qe[pri] = req;
288 }
289 else
290 q->qe[pri] = q->qs[pri] = req;
291
292 return q->size++;
293}
294
295aio_req reqq_shift (reqq *q)
296{
297 int pri;
298
299 if (!q->size)
300 return 0; 407 return;
301 408
302 --q->size; 409 if (!incmap->fm_mapped_extents)
410 goto done;
303 411
304 for (pri = NUM_PRI; pri--; ) 412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
305 { 413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
306 aio_req req = q->qs[pri]; 414 errno = ENOMEM;
307
308 if (req) 415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
309 { 421 {
310 if (!(q->qs[pri] = req->next)) 422 struct fiemap_extent *e = incmap->fm_extents + count;
311 q->qe[pri] = 0;
312 423
313 return req; 424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
426 if (e->fe_logical >= end_offset)
427 goto done;
428
429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
430 goto done;
431
314 } 432 }
315 } 433 }
316 434
317 abort (); 435done:
318} 436 req->result = 0;
319 437
320static int poll_cb (); 438#else
321static int req_invoke (aio_req req); 439 errno = ENOSYS;
440#endif
441}
442
443/*****************************************************************************/
444
445static int close_fd; /* dummy fd to close fds via dup2 */
446
447#if HAVE_STATX
448static struct statx stx;
449#define statx_offsetof(member) offsetof (struct statx, member)
450#define eio__statx statx
451#else
452#define statx_offsetof(member) 0
453#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
454#endif
455
456enum {
457 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
458};
459
460typedef eio_req *aio_req;
461typedef eio_req *aio_req_ornot;
462typedef eio_wd aio_wd;
463
464static SV *on_next_submit;
465static int next_pri = EIO_PRI_DEFAULT;
466static int max_outstanding;
467
468static s_epipe respipe;
469
322static void req_free (aio_req req); 470static void req_destroy (aio_req req);
323static void req_cancel (aio_req req); 471static void req_cancel (aio_req req);
324 472
473static void
474want_poll (void)
475{
476 /* write a dummy byte to the pipe so fh becomes ready */
477 s_epipe_signal (&respipe);
478}
479
480static void
481done_poll (void)
482{
483 /* read any signals sent by the worker threads */
484 s_epipe_drain (&respipe);
485}
486
325/* must be called at most once */ 487/* must be called at most once */
326static SV *req_sv (aio_req req, const char *klass) 488ecb_noinline
489static SV *
490req_sv (aio_req req, HV *stash)
327{ 491{
328 if (!req->self) 492 if (!req->self)
329 { 493 {
330 req->self = (SV *)newHV (); 494 req->self = (SV *)newHV ();
331 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
332 } 496 }
333 497
334 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
335} 499}
336 500
337static aio_req SvAIO_REQ (SV *sv) 501static SV *
502newSVaio_wd (aio_wd wd)
503{
504 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
505}
506
507ecb_noinline
508static aio_req
509SvAIO_REQ (SV *sv)
338{ 510{
339 MAGIC *mg; 511 MAGIC *mg;
340 512
341 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 513 if (!SvROK (sv)
514 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
515 || (SvSTASH (SvRV (sv)) != aio_grp_stash
516 && SvSTASH (SvRV (sv)) != aio_req_stash
517 && !sv_derived_from (sv, "IO::AIO::REQ")))
342 croak ("object of class " AIO_REQ_KLASS " expected"); 518 croak ("object of class IO::AIO::REQ expected");
343 519
344 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
345 521
346 return mg ? (aio_req)mg->mg_ptr : 0; 522 return mg ? (aio_req)mg->mg_ptr : 0;
347} 523}
348 524
525static aio_wd
526SvAIO_WD (SV *sv)
527{
528 if (!SvROK (sv)
529 || SvTYPE (SvRV (sv)) != SVt_PVMG
530 || SvSTASH (SvRV (sv)) != aio_wd_stash)
531 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
532
533 return (aio_wd)(long)SvIVX (SvRV (sv));
534}
535
536static SV *
537newmortalFH (int fd, int flags)
538{
539 if (fd < 0)
540 return &PL_sv_undef;
541
542 GV *gv = (GV *)sv_newmortal ();
543 char sym[64];
544 int symlen;
545
546 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
547 gv_init (gv, aio_stash, sym, symlen, 0);
548
549 symlen = snprintf (
550 sym,
551 sizeof (sym),
552 "%s&=%d",
553 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
554 fd
555 );
556
557 return do_open (gv, sym, symlen, 0, 0, 0, 0)
558 ? (SV *)gv : &PL_sv_undef;
559}
560
561static void
349static void aio_grp_feed (aio_req grp) 562aio_grp_feed (aio_req grp)
350{ 563{
351 block_sig (); 564 if (grp->sv2 && SvOK (grp->sv2))
352
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
354 { 565 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 566 dSP;
360 567
361 ENTER; 568 ENTER;
362 SAVETMPS; 569 SAVETMPS;
363 PUSHMARK (SP); 570 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 571 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 572 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 573 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 574 SPAGAIN;
368 FREETMPS; 575 FREETMPS;
369 LEAVE; 576 LEAVE;
370 }
371
372 /* stop if no progress has been made */
373 if (old_len == grp->size)
374 {
375 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0;
377 break;
378 }
379 } 577 }
380
381 unblock_sig ();
382} 578}
383 579
384static void aio_grp_dec (aio_req grp) 580ecb_noinline
581static void
582req_submit (eio_req *req)
385{ 583{
386 --grp->size; 584 eio_submit (req);
387 585
388 /* call feeder, if applicable */ 586 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 587 {
394 block_sig (); 588 dSP;
589 SV *cb = sv_2mortal (on_next_submit);
395 590
396 if (!req_invoke (grp)) 591 on_next_submit = 0;
397 {
398 req_free (grp);
399 unblock_sig ();
400 croak (0);
401 }
402 592
403 req_free (grp); 593 PUSHMARK (SP);
404 unblock_sig (); 594 PUTBACK;
595 call_sv (cb, G_DISCARD | G_EVAL);
405 } 596 }
406} 597}
407 598
599static int
408static int req_invoke (aio_req req) 600req_invoke (eio_req *req)
409{ 601{
410 dSP;
411
412 if (req->flags & FLAG_SV1_RO_OFF) 602 if (req->flags & FLAG_SV2_RO_OFF)
413 SvREADONLY_off (req->sv1); 603 SvREADONLY_off (req->sv2);
414 604
415 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 605 if (!EIO_CANCELLED (req) && req->callback)
416 { 606 {
607 dSP;
608 static SV *sv_result_cache; /* caches the result integer SV */
609 SV *sv_result;
610
417 ENTER; 611 ENTER;
418 SAVETMPS; 612 SAVETMPS;
419 PUSHMARK (SP); 613 PUSHMARK (SP);
420 EXTEND (SP, 1); 614 EXTEND (SP, 1);
421 615
616 /* do not recreate the result IV from scratch each time */
617 if (expect_true (sv_result_cache))
618 {
619 sv_result = sv_result_cache; sv_result_cache = 0;
620 SvIV_set (sv_result, req->result);
621 SvIOK_only (sv_result);
622 }
623 else
624 {
625 sv_result = newSViv (req->result);
626 SvREADONLY_on (sv_result);
627 }
628
422 switch (req->type) 629 switch (req->type)
423 { 630 {
631 case EIO_WD_OPEN:
632 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
633 break;
634
424 case REQ_READDIR: 635 case EIO_READDIR:
425 { 636 {
426 SV *rv = &PL_sv_undef; 637 SV *rv = &PL_sv_undef;
427 638
428 if (req->result >= 0) 639 if (req->result >= 0)
429 { 640 {
430 int i; 641 int i;
431 char *buf = req->ptr2; 642 char *names = (char *)req->ptr2;
643 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
432 AV *av = newAV (); 644 AV *av = newAV ();
433 645
434 av_extend (av, req->result - 1); 646 av_extend (av, req->result - 1);
435 647
436 for (i = 0; i < req->result; ++i) 648 for (i = 0; i < req->result; ++i)
437 { 649 {
438 SV *sv = newSVpv (buf, 0); 650 if (req->int1 & EIO_READDIR_DENTS)
651 {
652 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
439 653
654 if (req->int1 & EIO_READDIR_CUSTOM2)
655 {
656 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
657 AV *avent = newAV ();
658
659 av_extend (avent, 2);
660
661 if (!sv_type [ent->type])
662 {
663 sv_type [ent->type] = newSViv (ent->type);
664 SvREADONLY_on (sv_type [ent->type]);
665 }
666
667 av_store (avent, 0, namesv);
668 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
669 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
670
671 av_store (av, i, newRV_noinc ((SV *)avent));
672 }
673 else
440 av_store (av, i, sv); 674 av_store (av, i, namesv);
675
676 ++ent;
677 }
678 else
679 {
680 SV *name = newSVpv (names, 0);
681 av_store (av, i, name);
441 buf += SvCUR (sv) + 1; 682 names += SvCUR (name) + 1;
683 }
442 } 684 }
443 685
444 rv = sv_2mortal (newRV_noinc ((SV *)av)); 686 rv = sv_2mortal (newRV_noinc ((SV *)av));
445 } 687 }
446 688
447 PUSHs (rv); 689 PUSHs (rv);
690
691 if (req->int1 & EIO_READDIR_CUSTOM1)
692 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
448 } 693 }
449 break; 694 break;
450 695
451 case REQ_OPEN: 696 case EIO_OPEN:
697 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
698 break;
699
700 case EIO_STATVFS:
701 case EIO_FSTATVFS:
452 { 702 {
453 /* convert fd to fh */ 703 SV *rv = &PL_sv_undef;
454 SV *fh; 704
705#ifndef _WIN32
706 if (req->result >= 0)
707 {
708 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
709 HV *hv = newHV ();
710 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
711 * chooses to make it a struct.
712 */
713 unsigned long fsid = 0;
714 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
455 715
456 PUSHs (sv_2mortal (newSViv (req->result))); 716 rv = sv_2mortal (newRV_noinc ((SV *)hv));
457 PUTBACK;
458 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
459 SPAGAIN;
460 717
461 fh = POPs; 718 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
462 PUSHMARK (SP); 719 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
720 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
721 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
722 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
723 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
724 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
725 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
726 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
727 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
728 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
729 }
730#endif
731
463 XPUSHs (fh); 732 PUSHs (rv);
464 } 733 }
734
465 break; 735 break;
466 736
467 case REQ_GROUP: 737 case EIO_GROUP:
468 req->int1 = 2; /* mark group as finished */ 738 req->int1 = 2; /* mark group as finished */
469 739
470 if (req->sv1) 740 if (req->sv1)
471 { 741 {
472 int i; 742 int i;
… …
476 for (i = 0; i <= AvFILL (av); ++i) 746 for (i = 0; i <= AvFILL (av); ++i)
477 PUSHs (*av_fetch (av, i, 0)); 747 PUSHs (*av_fetch (av, i, 0));
478 } 748 }
479 break; 749 break;
480 750
481 case REQ_NOP: 751 case EIO_NOP:
482 case REQ_BUSY: 752 case EIO_BUSY:
483 break; 753 break;
484 754
485 case REQ_READLINK: 755 case EIO_READLINK:
756 case EIO_REALPATH:
486 if (req->result > 0) 757 if (req->result > 0)
758 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
759 break;
760
761 case EIO_STAT:
762 case EIO_LSTAT:
763 case EIO_FSTAT:
764 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
765
766 if (!(PL_laststatval = req->result))
767 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
768 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
769
770 PUSHs (sv_result);
771 break;
772
773 case EIO_SEEK:
774 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
775 break;
776
777 case EIO_READ:
778 {
779 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
780 *SvEND (req->sv2) = 0;
781 SvPOK_only (req->sv2);
782 SvSETMAGIC (req->sv2);
783 PUSHs (sv_result);
784 }
785 break;
786
787 case EIO_SLURP:
788 {
789 if (req->result >= 0)
790 {
791 /* if length was originally not known, we steal the malloc'ed memory */
792 if (req->flags & EIO_FLAG_PTR2_FREE)
793 {
794 req->flags &= ~EIO_FLAG_PTR2_FREE;
795 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
796 }
797 else
798 {
799 SvCUR_set (req->sv2, req->result);
800 *SvEND (req->sv2) = 0;
801 SvPOK_only (req->sv2);
802 }
803
804 SvSETMAGIC (req->sv2);
805 }
806
807 PUSHs (sv_result);
808 }
809 break;
810
811 case EIO_CUSTOM:
812 if (req->feed == fiemap)
487 { 813 {
488 SvCUR_set (req->sv2, req->result); 814#if HAVE_FIEMAP
489 *SvEND (req->sv2) = 0;
490 PUSHs (req->sv2); 815 if (!req->result)
816 {
817 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
818
819 if (fiemap->fm_extent_count)
820 {
821 AV *av = newAV ();
822 int i;
823
824 while (fiemap->fm_mapped_extents)
825 {
826 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
827 AV *ext_av = newAV ();
828
829 av_store (ext_av, 3, newSVuv (extent->fe_flags));
830 av_store (ext_av, 2, newSVval64 (extent->fe_length));
831 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
832 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
833
834 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
835 }
836
837 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
838 }
839 else
840 {
841 SvIV_set (sv_result, fiemap->fm_mapped_extents);
842 PUSHs (sv_result);
843 }
844 }
845#endif
491 } 846 }
847 else
848 PUSHs (sv_result);
492 break; 849 break;
493 850
494 case REQ_STAT: 851#if 0
495 case REQ_LSTAT: 852 case EIO_CLOSE:
496 case REQ_FSTAT: 853 PerlIOUnix_refcnt_dec (req->int1);
497 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
498 PL_laststatval = req->result;
499 PL_statcache = *(Stat_t *)(req->ptr2);
500 PUSHs (sv_2mortal (newSViv (req->result)));
501 break; 854 break;
855#endif
502 856
503 case REQ_READ: 857 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
504 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 858 if (req->result > 0)
505 *SvEND (req->sv2) = 0; 859 SvIV_set (sv_result, 0);
506 PUSHs (sv_2mortal (newSViv (req->result))); 860 /* FALLTHROUGH */
507 break;
508 861
509 default: 862 default:
510 PUSHs (sv_2mortal (newSViv (req->result))); 863 PUSHs (sv_result);
511 break; 864 break;
512 } 865 }
513 866
514 errno = req->errorno; 867 errno = req->errorno;
515 868
516 PUTBACK; 869 PUTBACK;
517 call_sv (req->callback, G_VOID | G_EVAL); 870 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
518 SPAGAIN; 871 SPAGAIN;
872
873 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
874 SvREFCNT_dec (sv_result);
875 else
876 sv_result_cache = sv_result;
519 877
520 FREETMPS; 878 FREETMPS;
521 LEAVE; 879 LEAVE;
880
881 PUTBACK;
522 } 882 }
523 883
524 if (req->grp)
525 {
526 aio_req grp = req->grp;
527
528 /* unlink request */
529 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
530 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
531
532 if (grp->grp_first == req)
533 grp->grp_first = req->grp_next;
534
535 aio_grp_dec (grp);
536 }
537
538 return !SvTRUE (ERRSV); 884 return !!SvTRUE (ERRSV);
539} 885}
540 886
541static void req_free (aio_req req) 887static void
888req_destroy (aio_req req)
542{ 889{
543 if (req->self) 890 if (req->self)
544 { 891 {
545 sv_unmagic (req->self, PERL_MAGIC_ext); 892 sv_unmagic (req->self, PERL_MAGIC_ext);
546 SvREFCNT_dec (req->self); 893 SvREFCNT_dec (req->self);
547 } 894 }
548 895
549 SvREFCNT_dec (req->sv1); 896 SvREFCNT_dec (req->sv1);
550 SvREFCNT_dec (req->sv2); 897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
551 SvREFCNT_dec (req->callback); 900 SvREFCNT_dec (req->callback);
552 901
553 if (req->flags & FLAG_PTR2_FREE)
554 free (req->ptr2);
555
556 Safefree (req); 902 free (req);
557} 903}
558 904
905static void
559static void req_cancel_subs (aio_req grp) 906req_cancel_subs (aio_req grp)
560{ 907{
561 aio_req sub;
562
563 if (grp->type != REQ_GROUP) 908 if (grp->type != EIO_GROUP)
564 return; 909 return;
565 910
566 SvREFCNT_dec (grp->sv2); 911 SvREFCNT_dec (grp->sv2);
567 grp->sv2 = 0; 912 grp->sv2 = 0;
568 913
569 for (sub = grp->grp_first; sub; sub = sub->grp_next) 914 eio_grp_cancel (grp);
570 req_cancel (sub);
571} 915}
572 916
573static void req_cancel (aio_req req) 917ecb_cold
918static void
919create_respipe (void)
574{ 920{
575 req->flags |= FLAG_CANCELLED; 921 if (s_epipe_renew (&respipe))
576 922 croak ("IO::AIO: unable to initialize result pipe");
577 req_cancel_subs (req);
578} 923}
579 924
580static void *aio_proc(void *arg); 925static void
581 926poll_wait (void)
582static void start_thread (void)
583{ 927{
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 LOCK (wrklock);
590
591 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
592 {
593 wrk->prev = &wrk_first;
594 wrk->next = wrk_first.next;
595 wrk_first.next->prev = wrk;
596 wrk_first.next = wrk;
597 ++started;
598 }
599 else
600 free (wrk);
601
602 UNLOCK (wrklock);
603}
604
605static void maybe_start_thread ()
606{
607 if (get_nthreads () >= wanted)
608 return;
609
610 /* todo: maybe use idle here, but might be less exact */
611 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
612 return;
613
614 start_thread ();
615}
616
617static void req_send (aio_req req)
618{
619 block_sig ();
620
621 ++nreqs;
622
623 LOCK (reqlock);
624 ++nready;
625 reqq_push (&req_queue, req);
626 COND_SIGNAL (reqwait);
627 UNLOCK (reqlock);
628
629 unblock_sig ();
630
631 maybe_start_thread ();
632}
633
634static void end_thread (void)
635{
636 aio_req req;
637
638 Newz (0, req, 1, aio_cb);
639
640 req->type = REQ_QUIT;
641 req->pri = PRI_MAX + PRI_BIAS;
642
643 LOCK (reqlock);
644 reqq_push (&req_queue, req);
645 COND_SIGNAL (reqwait);
646 UNLOCK (reqlock);
647
648 LOCK (wrklock);
649 --started;
650 UNLOCK (wrklock);
651}
652
653static void set_max_idle (int nthreads)
654{
655 if (WORDACCESS_UNSAFE) LOCK (reqlock);
656 max_idle = nthreads <= 0 ? 1 : nthreads;
657 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
658}
659
660static void min_parallel (int nthreads)
661{
662 if (wanted < nthreads)
663 wanted = nthreads;
664}
665
666static void max_parallel (int nthreads)
667{
668 if (wanted > nthreads)
669 wanted = nthreads;
670
671 while (started > wanted)
672 end_thread ();
673}
674
675static void poll_wait ()
676{
677 fd_set rfd;
678
679 while (nreqs) 928 while (eio_nreqs ())
680 { 929 {
681 int size; 930 int size;
682 if (WORDACCESS_UNSAFE) LOCK (reslock); 931
932 X_LOCK (EIO_POOL->reslock);
683 size = res_queue.size; 933 size = EIO_POOL->res_queue.size;
684 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 934 X_UNLOCK (EIO_POOL->reslock);
685 935
686 if (size) 936 if (size)
687 return; 937 return;
688 938
689 maybe_start_thread (); 939 etp_maybe_start_thread (EIO_POOL);
690 940
691 FD_ZERO(&rfd); 941 s_epipe_wait (&respipe);
692 FD_SET(respipe [0], &rfd);
693
694 select (respipe [0] + 1, &rfd, 0, 0, 0);
695 } 942 }
696} 943}
697 944
698static int poll_cb () 945static int
946poll_cb (void)
699{ 947{
700 dSP;
701 int count = 0;
702 int maxreqs = max_poll_reqs;
703 int do_croak = 0;
704 struct timeval tv_start, tv_now;
705 aio_req req;
706
707 if (max_poll_time)
708 gettimeofday (&tv_start, 0);
709
710 block_sig ();
711
712 for (;;) 948 for (;;)
713 { 949 {
714 for (;;) 950 int res = eio_poll ();
951
952 if (res > 0)
953 croak (0);
954
955 if (!max_outstanding || max_outstanding > eio_nreqs ())
956 return res;
957
958 poll_wait ();
959 }
960}
961
962ecb_cold
963static void
964reinit (void)
965{
966 create_respipe ();
967
968 if (eio_init (want_poll, done_poll) < 0)
969 croak ("IO::AIO: unable to initialise eio library");
970}
971
972/*****************************************************************************/
973
974static SV *
975get_cb (SV *cb_sv)
976{
977 SvGETMAGIC (cb_sv);
978 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
979}
980
981ecb_noinline
982static aio_req ecb_noinline
983dreq (SV *callback)
984{
985 SV *cb_cv;
986 aio_req req;
987 int req_pri = next_pri;
988 next_pri = EIO_PRI_DEFAULT;
989
990 cb_cv = get_cb (callback);
991
992 req = calloc (sizeof (*req), 1);
993 if (!req)
994 croak ("out of memory during eio_req allocation");
995
996 req->callback = SvREFCNT_inc (cb_cv);
997 req->pri = req_pri;
998
999 return req;
1000}
1001
1002#define dREQ \
1003 aio_req req = dreq (callback); \
1004
1005#define REQ_SEND \
1006 PUTBACK; \
1007 req_submit (req); \
1008 SPAGAIN; \
1009 \
1010 if (GIMME_V != G_VOID) \
1011 XPUSHs (req_sv (req, aio_req_stash));
1012
1013/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1014ecb_inline
1015void
1016req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1017{
1018 if (expect_false (SvROK (path)))
1019 {
1020 SV *rv = SvRV (path);
1021 SV *wdob;
1022
1023 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
715 { 1024 {
716 maybe_start_thread (); 1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
717 1027
718 LOCK (reslock); 1028 if (SvOK (wdob))
719 req = reqq_shift (&res_queue);
720
721 if (req)
722 { 1029 {
723 --npending; 1030 *wd = SvAIO_WD (wdob);
724 1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
725 if (!res_queue.size)
726 {
727 /* read any signals sent by the worker threads */
728 char buf [4];
729 while (read (respipe [0], buf, 4) == 4)
730 ;
731 }
732 }
733
734 UNLOCK (reslock);
735
736 if (!req)
737 break;
738
739 --nreqs;
740
741 if (req->type == REQ_GROUP && req->size)
742 {
743 req->int1 = 1; /* mark request as delayed */
744 continue;
745 } 1032 }
746 else 1033 else
747 { 1034 *wd = EIO_INVALID_WD;
748 if (!req_invoke (req))
749 {
750 req_free (req);
751 unblock_sig ();
752 croak (0);
753 }
754
755 count++;
756 }
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 } 1035 }
1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1037 {
1038 *wd = (aio_wd)(long)SvIVX (rv);
1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
1042 }
1043 else
1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1045 }
771 1046
772 if (nreqs <= max_outstanding) 1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
1049}
1050
1051ecb_noinline
1052static void
1053req_set_path1 (aio_req req, SV *path)
1054{
1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1056}
1057
1058ecb_noinline
1059static void
1060req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1061{
1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1063
1064 switch (SvTYPE (rv))
1065 {
1066 case SVt_PVIO:
1067 case SVt_PVLV:
1068 case SVt_PVGV:
1069 req->type = type_fh;
1070 req->sv1 = newSVsv (fh_or_path);
1071 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
773 break; 1072 break;
774 1073
775 poll_wait (); 1074 default:
776 1075 req->type = type_path;
777 ++maxreqs; 1076 req_set_path1 (req, fh_or_path);
1077 break;
778 } 1078 }
779
780 unblock_sig ();
781 return count;
782}
783
784static void create_pipe ()
785{
786 if (pipe (respipe))
787 croak ("unable to initialize result pipe");
788
789 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
790 croak ("cannot set result pipe to nonblocking mode");
791
792 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
793 croak ("cannot set result pipe to nonblocking mode");
794} 1079}
795 1080
796/*****************************************************************************/ 1081/*****************************************************************************/
797/* work around various missing functions */
798 1082
799#if !HAVE_PREADWRITE 1083static void
800# define pread aio_pread 1084ts_set (struct timespec *ts, NV value)
801# define pwrite aio_pwrite
802
803/*
804 * make our pread/pwrite safe against themselves, but not against
805 * normal read/write by using a mutex. slows down execution a lot,
806 * but that's your problem, not mine.
807 */
808static mutex_t preadwritelock = MUTEX_INIT;
809
810static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
811{ 1085{
812 ssize_t res; 1086 ts->tv_sec = value;
813 off_t ooffset; 1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
814
815 LOCK (preadwritelock);
816 ooffset = lseek (fd, 0, SEEK_CUR);
817 lseek (fd, offset, SEEK_SET);
818 res = read (fd, buf, count);
819 lseek (fd, ooffset, SEEK_SET);
820 UNLOCK (preadwritelock);
821
822 return res;
823} 1088}
824 1089
825static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1090static NV
1091ts_get (const struct timespec *ts)
826{ 1092{
827 ssize_t res; 1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
828 off_t ooffset;
829
830 LOCK (preadwritelock);
831 ooffset = lseek (fd, 0, SEEK_CUR);
832 lseek (fd, offset, SEEK_SET);
833 res = write (fd, buf, count);
834 lseek (fd, offset, SEEK_SET);
835 UNLOCK (preadwritelock);
836
837 return res;
838} 1094}
839#endif
840 1095
841#ifndef HAVE_FUTIMES 1096/*****************************************************************************/
842 1097
843# define utimes(path,times) aio_utimes (path, times) 1098XS(boot_IO__AIO) ecb_cold;
844# define futimes(fd,times) aio_futimes (fd, times)
845 1099
846int aio_utimes (const char *filename, const struct timeval times[2]) 1100MODULE = IO::AIO PACKAGE = IO::AIO
847{
848 if (times)
849 {
850 struct utimbuf buf;
851 1101
852 buf.actime = times[0].tv_sec; 1102PROTOTYPES: ENABLE
853 buf.modtime = times[1].tv_sec;
854 1103
855 return utime (filename, &buf); 1104BOOT:
856 }
857 else
858 return utime (filename, 0);
859}
860
861int aio_futimes (int fd, const struct timeval tv[2])
862{ 1105{
863 errno = ENOSYS; 1106 static const struct {
864 return -1; 1107 const char *name;
865} 1108 IV iv;
1109 } *civ, const_iv[] = {
1110# define const_niv(name, value) { # name, (IV) value },
1111# define const_iv(name) { # name, (IV) name },
1112# define const_eio(name) { # name, (IV) EIO_ ## name },
866 1113
867#endif 1114 /* you have to re-run ./gendef0 after adding/removing any constants here */
1115 /* the first block can be undef if missing */
1116 const_iv (ENOSYS)
1117 const_iv (EXDEV)
1118 const_iv (EBADR)
868 1119
869#if !HAVE_FDATASYNC 1120 /* for lseek */
870# define fdatasync fsync 1121 const_iv (SEEK_DATA)
871#endif 1122 const_iv (SEEK_HOLE)
872 1123
873#if !HAVE_READAHEAD 1124 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
874# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 1125 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1126 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1127 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1128 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1129 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
875 1130
876static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1131 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
877{ 1132 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
878 dBUF; 1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
879 1136
880 while (count > 0) 1137 /* the second block will be 0 when missing */
881 { 1138 const_iv (O_ACCMODE)
882 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
883 1139
884 pread (fd, aio_buf, len, offset); 1140 const_iv (O_RDONLY)
885 offset += len; 1141 const_iv (O_WRONLY)
886 count -= len; 1142 const_iv (O_RDWR)
887 } 1143 const_iv (O_CREAT)
1144 const_iv (O_TRUNC)
1145 const_iv (O_EXCL)
1146 const_iv (O_APPEND)
888 1147
889 errno = 0; 1148 const_iv (O_ASYNC)
890} 1149 const_iv (O_DIRECT)
1150 const_iv (O_NOATIME)
891 1151
892#endif 1152 const_iv (O_CLOEXEC)
1153 const_iv (O_NOCTTY)
1154 const_iv (O_NOFOLLOW)
1155 const_iv (O_NONBLOCK)
1156 const_iv (O_EXEC)
1157 const_iv (O_SEARCH)
1158 const_iv (O_DIRECTORY)
1159 const_iv (O_DSYNC)
1160 const_iv (O_RSYNC)
1161 const_iv (O_SYNC)
1162 const_iv (O_PATH)
1163 const_iv (O_TMPFILE)
1164 const_iv (O_TTY_INIT)
893 1165
894#if !HAVE_READDIR_R 1166 const_iv (S_IFIFO)
895# define readdir_r aio_readdir_r 1167 const_iv (S_IFCHR)
1168 const_iv (S_IFBLK)
1169 const_iv (S_IFLNK)
1170 const_iv (S_IFREG)
1171 const_iv (S_IFDIR)
1172 const_iv (S_IFWHT)
1173 const_iv (S_IFSOCK)
1174 const_iv (S_IFMT)
896 1175
897static mutex_t readdirlock = MUTEX_INIT; 1176 const_iv (ST_RDONLY)
898 1177 const_iv (ST_NOSUID)
899static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1178 const_iv (ST_NODEV)
900{ 1179 const_iv (ST_NOEXEC)
901 struct dirent *e; 1180 const_iv (ST_SYNCHRONOUS)
902 int errorno; 1181 const_iv (ST_MANDLOCK)
1182 const_iv (ST_WRITE)
1183 const_iv (ST_APPEND)
1184 const_iv (ST_IMMUTABLE)
1185 const_iv (ST_NOATIME)
1186 const_iv (ST_NODIRATIME)
1187 const_iv (ST_RELATIME)
903 1188
904 LOCK (readdirlock); 1189 const_iv (PROT_NONE)
1190 const_iv (PROT_EXEC)
1191 const_iv (PROT_READ)
1192 const_iv (PROT_WRITE)
905 1193
906 e = readdir (dirp); 1194 const_iv (MAP_PRIVATE)
907 errorno = errno; 1195 const_iv (MAP_SHARED)
1196 const_iv (MAP_FIXED)
1197 const_iv (MAP_ANONYMOUS)
908 1198
909 if (e) 1199 /* linuxish */
910 { 1200 const_iv (MAP_LOCKED)
911 *res = ent; 1201 const_iv (MAP_NORESERVE)
912 strcpy (ent->d_name, e->d_name); 1202 const_iv (MAP_POPULATE)
913 } 1203 const_iv (MAP_NONBLOCK)
914 else 1204 const_iv (MAP_GROWSDOWN)
915 *res = 0; 1205 const_iv (MAP_32BIT)
1206 const_iv (MAP_HUGETLB)
1207 const_iv (MAP_STACK)
1208 const_iv (MAP_FIXED_NOREPLACE)
1209 const_iv (MAP_SHARED_VALIDATE)
1210 const_iv (MAP_SYNC)
1211 const_iv (MAP_UNINITIALIZED)
916 1212
917 UNLOCK (readdirlock); 1213 const_iv (MREMAP_MAYMOVE)
1214 const_iv (MREMAP_FIXED)
918 1215
919 errno = errorno; 1216 const_iv (MSG_CMSG_CLOEXEC)
920 return e ? 0 : -1; 1217 const_iv (SOCK_CLOEXEC)
921}
922#endif
923 1218
924/* sendfile always needs emulation */ 1219 const_iv (F_DUPFD_CLOEXEC)
925static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
926{
927 ssize_t res;
928 1220
929 if (!count) 1221 const_iv (F_ADD_SEALS)
930 return 0; 1222 const_iv (F_GET_SEALS)
1223 const_iv (F_SEAL_SEAL)
1224 const_iv (F_SEAL_SHRINK)
1225 const_iv (F_SEAL_GROW)
1226 const_iv (F_SEAL_WRITE)
931 1227
932#if HAVE_SENDFILE 1228 const_iv (F_OFD_GETLK)
933# if __linux 1229 const_iv (F_OFD_SETLK)
934 res = sendfile (ofd, ifd, &offset, count); 1230 const_iv (F_OFD_GETLKW)
935 1231
936# elif __freebsd 1232 const_iv (FIFREEZE)
937 /* 1233 const_iv (FITHAW)
938 * Of course, the freebsd sendfile is a dire hack with no thoughts 1234 const_iv (FITRIM)
939 * wasted on making it similar to other I/O functions. 1235 const_iv (FICLONE)
940 */ 1236 const_iv (FICLONERANGE)
1237 const_iv (FIDEDUPERANGE)
1238
1239 const_iv (FS_IOC_GETFLAGS)
1240 const_iv (FS_IOC_SETFLAGS)
1241 const_iv (FS_IOC_GETVERSION)
1242 const_iv (FS_IOC_SETVERSION)
1243 const_iv (FS_IOC_FIEMAP)
1244 const_iv (FS_IOC_FSGETXATTR)
1245 const_iv (FS_IOC_FSSETXATTR)
1246 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1247 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1248 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1249
1250 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1251
1252 const_iv (FS_SECRM_FL)
1253 const_iv (FS_UNRM_FL)
1254 const_iv (FS_COMPR_FL)
1255 const_iv (FS_SYNC_FL)
1256 const_iv (FS_IMMUTABLE_FL)
1257 const_iv (FS_APPEND_FL)
1258 const_iv (FS_NODUMP_FL)
1259 const_iv (FS_NOATIME_FL)
1260 const_iv (FS_DIRTY_FL)
1261 const_iv (FS_COMPRBLK_FL)
1262 const_iv (FS_NOCOMP_FL)
1263 const_iv (FS_ENCRYPT_FL)
1264 const_iv (FS_BTREE_FL)
1265 const_iv (FS_INDEX_FL)
1266 const_iv (FS_JOURNAL_DATA_FL)
1267 const_iv (FS_NOTAIL_FL)
1268 const_iv (FS_DIRSYNC_FL)
1269 const_iv (FS_TOPDIR_FL)
1270 const_iv (FS_FL_USER_MODIFIABLE)
1271
1272 const_iv (FS_XFLAG_REALTIME)
1273 const_iv (FS_XFLAG_PREALLOC)
1274 const_iv (FS_XFLAG_IMMUTABLE)
1275 const_iv (FS_XFLAG_APPEND)
1276 const_iv (FS_XFLAG_SYNC)
1277 const_iv (FS_XFLAG_NOATIME)
1278 const_iv (FS_XFLAG_NODUMP)
1279 const_iv (FS_XFLAG_RTINHERIT)
1280 const_iv (FS_XFLAG_PROJINHERIT)
1281 const_iv (FS_XFLAG_NOSYMLINKS)
1282 const_iv (FS_XFLAG_EXTSIZE)
1283 const_iv (FS_XFLAG_EXTSZINHERIT)
1284 const_iv (FS_XFLAG_NODEFRAG)
1285 const_iv (FS_XFLAG_FILESTREAM)
1286 const_iv (FS_XFLAG_DAX)
1287 const_iv (FS_XFLAG_HASATTR)
1288
1289 const_iv (FIEMAP_FLAG_SYNC)
1290 const_iv (FIEMAP_FLAG_XATTR)
1291 const_iv (FIEMAP_FLAGS_COMPAT)
1292 const_iv (FIEMAP_EXTENT_LAST)
1293 const_iv (FIEMAP_EXTENT_UNKNOWN)
1294 const_iv (FIEMAP_EXTENT_DELALLOC)
1295 const_iv (FIEMAP_EXTENT_ENCODED)
1296 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1297 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1298 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1299 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1300 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1301 const_iv (FIEMAP_EXTENT_MERGED)
1302 const_iv (FIEMAP_EXTENT_SHARED)
1303
1304 const_iv (SPLICE_F_MOVE)
1305 const_iv (SPLICE_F_NONBLOCK)
1306 const_iv (SPLICE_F_MORE)
1307 const_iv (SPLICE_F_GIFT)
1308
1309 const_iv (EFD_CLOEXEC)
1310 const_iv (EFD_NONBLOCK)
1311 const_iv (EFD_SEMAPHORE)
1312
1313 const_iv (MFD_CLOEXEC)
1314 const_iv (MFD_ALLOW_SEALING)
1315 const_iv (MFD_HUGETLB)
1316
1317 const_iv (CLOCK_REALTIME)
1318 const_iv (CLOCK_MONOTONIC)
1319 const_iv (CLOCK_BOOTTIME)
1320 const_iv (CLOCK_REALTIME_ALARM)
1321 const_iv (CLOCK_BOOTTIME_ALARM)
1322
1323 const_iv (TFD_NONBLOCK)
1324 const_iv (TFD_CLOEXEC)
1325
1326 const_iv (TFD_TIMER_ABSTIME)
1327 const_iv (TFD_TIMER_CANCEL_ON_SET)
1328
1329 const_iv (STATX_TYPE)
1330 const_iv (STATX_MODE)
1331 const_iv (STATX_NLINK)
1332 const_iv (STATX_UID)
1333 const_iv (STATX_GID)
1334 const_iv (STATX_ATIME)
1335 const_iv (STATX_MTIME)
1336 const_iv (STATX_CTIME)
1337 const_iv (STATX_INO)
1338 const_iv (STATX_SIZE)
1339 const_iv (STATX_BLOCKS)
1340 const_iv (STATX_BASIC_STATS)
1341 const_iv (STATX_ALL)
1342 const_iv (STATX_BTIME)
1343 const_iv (STATX_ATTR_COMPRESSED)
1344 const_iv (STATX_ATTR_IMMUTABLE)
1345 const_iv (STATX_ATTR_APPEND)
1346 const_iv (STATX_ATTR_NODUMP)
1347 const_iv (STATX_ATTR_ENCRYPTED)
1348 const_iv (STATX_ATTR_AUTOMOUNT)
1349
1350 const_iv (AT_FDCWD)
1351 const_iv (AT_SYMLINK_NOFOLLOW)
1352 const_iv (AT_EACCESS)
1353 const_iv (AT_REMOVEDIR)
1354 const_iv (AT_SYMLINK_FOLLOW)
1355 const_iv (AT_NO_AUTOMOUNT)
1356 const_iv (AT_EMPTY_PATH)
1357 const_iv (AT_STATX_SYNC_TYPE)
1358 const_iv (AT_STATX_AS_STAT)
1359 const_iv (AT_STATX_FORCE_SYNC)
1360 const_iv (AT_STATX_DONT_SYNC)
1361 const_iv (AT_RECURSIVE)
1362
1363 const_iv (OPEN_TREE_CLONE)
1364
1365 const_iv (FSOPEN_CLOEXEC)
1366
1367 const_iv (FSPICK_CLOEXEC)
1368 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1369 const_iv (FSPICK_NO_AUTOMOUNT)
1370 const_iv (FSPICK_EMPTY_PATH)
1371
1372 const_iv (MOVE_MOUNT_F_SYMLINKS)
1373 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1374 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1375 const_iv (MOVE_MOUNT_T_SYMLINKS)
1376 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1377 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1378
1379 /* waitid */
1380 const_iv (P_PID)
1381 const_iv (P_PIDFD)
1382 const_iv (P_PGID)
1383 const_iv (P_ALL)
1384
1385 const_iv (FSCONFIG_SET_FLAG)
1386 const_iv (FSCONFIG_SET_STRING)
1387 const_iv (FSCONFIG_SET_BINARY)
1388 const_iv (FSCONFIG_SET_PATH)
1389 const_iv (FSCONFIG_SET_PATH_EMPTY)
1390 const_iv (FSCONFIG_SET_FD)
1391 const_iv (FSCONFIG_CMD_CREATE)
1392 const_iv (FSCONFIG_CMD_RECONFIGURE)
1393
1394 const_iv (MOUNT_ATTR_RDONLY)
1395 const_iv (MOUNT_ATTR_NOSUID)
1396 const_iv (MOUNT_ATTR_NODEV)
1397 const_iv (MOUNT_ATTR_NOEXEC)
1398 const_iv (MOUNT_ATTR__ATIME)
1399 const_iv (MOUNT_ATTR_RELATIME)
1400 const_iv (MOUNT_ATTR_NOATIME)
1401 const_iv (MOUNT_ATTR_STRICTATIME)
1402 const_iv (MOUNT_ATTR_NODIRATIME)
1403
1404 /* these are libeio constants, and are independent of gendef0 */
1405 const_eio (SEEK_SET)
1406 const_eio (SEEK_CUR)
1407 const_eio (SEEK_END)
1408
1409 const_eio (MCL_FUTURE)
1410 const_eio (MCL_CURRENT)
1411 const_eio (MCL_ONFAULT)
1412
1413 const_eio (MS_ASYNC)
1414 const_eio (MS_INVALIDATE)
1415 const_eio (MS_SYNC)
1416
1417 const_eio (MT_MODIFY)
1418
1419 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1420 const_eio (SYNC_FILE_RANGE_WRITE)
1421 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1422
1423 const_eio (FALLOC_FL_KEEP_SIZE)
1424 const_eio (FALLOC_FL_PUNCH_HOLE)
1425 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1426 const_eio (FALLOC_FL_ZERO_RANGE)
1427 const_eio (FALLOC_FL_INSERT_RANGE)
1428 const_eio (FALLOC_FL_UNSHARE_RANGE)
1429
1430 const_eio (RENAME_NOREPLACE)
1431 const_eio (RENAME_EXCHANGE)
1432 const_eio (RENAME_WHITEOUT)
1433
1434 const_eio (READDIR_DENTS)
1435 const_eio (READDIR_DIRS_FIRST)
1436 const_eio (READDIR_STAT_ORDER)
1437 const_eio (READDIR_FOUND_UNKNOWN)
1438
1439 const_eio (DT_UNKNOWN)
1440 const_eio (DT_FIFO)
1441 const_eio (DT_CHR)
1442 const_eio (DT_DIR)
1443 const_eio (DT_BLK)
1444 const_eio (DT_REG)
1445 const_eio (DT_LNK)
1446 const_eio (DT_SOCK)
1447 const_eio (DT_WHT)
1448 };
1449
1450 aio_stash = gv_stashpv ("IO::AIO" , 1);
1451 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1452 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1453 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1454
1455 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1456 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1457
1458 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1459
1460 /* allocate dummy pipe fd for aio_close */
941 { 1461 {
942 off_t sbytes; 1462 int pipefd [2];
943 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
944 1463
945 if (res < 0 && sbytes) 1464 if (
946 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1465#ifdef _WIN32
947 res = sbytes; 1466 _pipe (pipefd, 1, _O_BINARY) < 0
1467#else
1468 pipe (pipefd) < 0
1469 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1470#endif
1471 || close (pipefd [1]) < 0
1472 )
1473 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1474
1475 close_fd = pipefd [0];
948 } 1476 }
949 1477
950# elif __hpux 1478 reinit ();
951 res = sendfile (ofd, ifd, offset, count, 0, 0);
952
953# elif __solaris
954 {
955 struct sendfilevec vec;
956 size_t sbytes;
957
958 vec.sfv_fd = ifd;
959 vec.sfv_flag = 0;
960 vec.sfv_off = offset;
961 vec.sfv_len = count;
962
963 res = sendfilev (ofd, &vec, 1, &sbytes);
964
965 if (res < 0 && sbytes)
966 res = sbytes;
967 }
968
969# endif
970#else
971 res = -1;
972 errno = ENOSYS;
973#endif
974
975 if (res < 0
976 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
977#if __solaris
978 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
979#endif
980 )
981 )
982 {
983 /* emulate sendfile. this is a major pain in the ass */
984 dBUF;
985
986 res = 0;
987
988 while (count)
989 {
990 ssize_t cnt;
991
992 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
993
994 if (cnt <= 0)
995 {
996 if (cnt && !res) res = -1;
997 break;
998 }
999
1000 cnt = write (ofd, aio_buf, cnt);
1001
1002 if (cnt <= 0)
1003 {
1004 if (cnt && !res) res = -1;
1005 break;
1006 }
1007
1008 offset += cnt;
1009 res += cnt;
1010 count -= cnt;
1011 }
1012 }
1013
1014 return res;
1015} 1479}
1016 1480
1017/* read a full directory */
1018static void scandir_ (aio_req req, worker *self)
1019{
1020 DIR *dirp;
1021 union
1022 {
1023 struct dirent d;
1024 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1025 } *u;
1026 struct dirent *entp;
1027 char *name, *names;
1028 int memlen = 4096;
1029 int memofs = 0;
1030 int res = 0;
1031 int errorno;
1032
1033 LOCK (wrklock);
1034 self->dirp = dirp = opendir (req->ptr1);
1035 self->dbuf = u = malloc (sizeof (*u));
1036 req->flags |= FLAG_PTR2_FREE;
1037 req->ptr2 = names = malloc (memlen);
1038 UNLOCK (wrklock);
1039
1040 if (dirp && u && names)
1041 for (;;)
1042 {
1043 errno = 0;
1044 readdir_r (dirp, &u->d, &entp);
1045
1046 if (!entp)
1047 break;
1048
1049 name = entp->d_name;
1050
1051 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1052 {
1053 int len = strlen (name) + 1;
1054
1055 res++;
1056
1057 while (memofs + len > memlen)
1058 {
1059 memlen *= 2;
1060 LOCK (wrklock);
1061 req->ptr2 = names = realloc (names, memlen);
1062 UNLOCK (wrklock);
1063
1064 if (!names)
1065 break;
1066 }
1067
1068 memcpy (names + memofs, name, len);
1069 memofs += len;
1070 }
1071 }
1072
1073 if (errno)
1074 res = -1;
1075
1076 req->result = res;
1077}
1078
1079/*****************************************************************************/
1080
1081static void *aio_proc (void *thr_arg)
1082{
1083 aio_req req;
1084 struct timespec ts;
1085 worker *self = (worker *)thr_arg;
1086
1087 /* try to distribute timeouts somewhat evenly */
1088 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1089 * (1000000000UL / 1024UL);
1090
1091 for (;;)
1092 {
1093 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1094
1095 LOCK (reqlock);
1096
1097 for (;;)
1098 {
1099 self->req = req = reqq_shift (&req_queue);
1100
1101 if (req)
1102 break;
1103
1104 ++idle;
1105
1106 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1107 == ETIMEDOUT)
1108 {
1109 if (idle > max_idle)
1110 {
1111 --idle;
1112 UNLOCK (reqlock);
1113 LOCK (wrklock);
1114 --started;
1115 UNLOCK (wrklock);
1116 goto quit;
1117 }
1118
1119 /* we are allowed to idle, so do so without any timeout */
1120 COND_WAIT (reqwait, reqlock);
1121 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1122 }
1123
1124 --idle;
1125 }
1126
1127 --nready;
1128
1129 UNLOCK (reqlock);
1130
1131 errno = 0; /* strictly unnecessary */
1132
1133 if (!(req->flags & FLAG_CANCELLED))
1134 switch (req->type)
1135 {
1136 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1137 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1138
1139 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1140 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1141
1142 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1143 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1144 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1145
1146 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1147 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1148 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1149 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1150
1151 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1152 case REQ_CLOSE: req->result = close (req->int1); break;
1153 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1154 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1155 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1156 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1157 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1158 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1159 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1160 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1161
1162 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1163 case REQ_FSYNC: req->result = fsync (req->int1); break;
1164 case REQ_READDIR: scandir_ (req, self); break;
1165
1166 case REQ_BUSY:
1167 {
1168 struct timeval tv;
1169
1170 tv.tv_sec = req->nv1;
1171 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.;
1172
1173 req->result = select (0, 0, 0, 0, &tv);
1174 }
1175
1176 case REQ_UTIME:
1177 case REQ_FUTIME:
1178 {
1179 struct timeval tv[2];
1180 struct timeval *times;
1181
1182 if (req->nv1 != -1. || req->nv2 != -1.)
1183 {
1184 tv[0].tv_sec = req->nv1;
1185 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1186 tv[1].tv_sec = req->nv2;
1187 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1188
1189 times = tv;
1190 }
1191 else
1192 times = 0;
1193
1194
1195 req->result = req->type == REQ_FUTIME
1196 ? futimes (req->int1, times)
1197 : utimes (req->ptr1, times);
1198 }
1199
1200 case REQ_GROUP:
1201 case REQ_NOP:
1202 break;
1203
1204 case REQ_QUIT:
1205 goto quit;
1206
1207 default:
1208 req->result = -1;
1209 break;
1210 }
1211
1212 req->errorno = errno;
1213
1214 LOCK (reslock);
1215
1216 ++npending;
1217
1218 if (!reqq_push (&res_queue, req))
1219 {
1220 /* write a dummy byte to the pipe so fh becomes ready */
1221 write (respipe [1], &respipe, 1);
1222
1223 /* optionally signal the main thread asynchronously */
1224 if (main_sig)
1225 pthread_kill (main_tid, main_sig);
1226 }
1227
1228 self->req = 0;
1229 worker_clear (self);
1230
1231 UNLOCK (reslock);
1232 }
1233
1234quit:
1235 LOCK (wrklock);
1236 worker_free (self);
1237 UNLOCK (wrklock);
1238
1239 return 0;
1240}
1241
1242/*****************************************************************************/
1243
1244static void atfork_prepare (void)
1245{
1246 LOCK (wrklock);
1247 LOCK (reqlock);
1248 LOCK (reslock);
1249#if !HAVE_PREADWRITE
1250 LOCK (preadwritelock);
1251#endif
1252#if !HAVE_READDIR_R
1253 LOCK (readdirlock);
1254#endif
1255}
1256
1257static void atfork_parent (void)
1258{
1259#if !HAVE_READDIR_R
1260 UNLOCK (readdirlock);
1261#endif
1262#if !HAVE_PREADWRITE
1263 UNLOCK (preadwritelock);
1264#endif
1265 UNLOCK (reslock);
1266 UNLOCK (reqlock);
1267 UNLOCK (wrklock);
1268}
1269
1270static void atfork_child (void)
1271{
1272 aio_req prv;
1273
1274 while (prv = reqq_shift (&req_queue))
1275 req_free (prv);
1276
1277 while (prv = reqq_shift (&res_queue))
1278 req_free (prv);
1279
1280 while (wrk_first.next != &wrk_first)
1281 {
1282 worker *wrk = wrk_first.next;
1283
1284 if (wrk->req)
1285 req_free (wrk->req);
1286
1287 worker_clear (wrk);
1288 worker_free (wrk);
1289 }
1290
1291 started = 0;
1292 idle = 0;
1293 nreqs = 0;
1294 nready = 0;
1295 npending = 0;
1296
1297 close (respipe [0]);
1298 close (respipe [1]);
1299 create_pipe ();
1300
1301 atfork_parent ();
1302}
1303
1304#define dREQ \
1305 aio_req req; \
1306 int req_pri = next_pri; \
1307 next_pri = DEFAULT_PRI + PRI_BIAS; \
1308 \
1309 if (SvOK (callback) && !SvROK (callback)) \
1310 croak ("callback must be undef or of reference type"); \
1311 \
1312 Newz (0, req, 1, aio_cb); \
1313 if (!req) \
1314 croak ("out of memory during aio_req allocation"); \
1315 \
1316 req->callback = newSVsv (callback); \
1317 req->pri = req_pri
1318
1319#define REQ_SEND \
1320 req_send (req); \
1321 \
1322 if (GIMME_V != G_VOID) \
1323 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1324
1325MODULE = IO::AIO PACKAGE = IO::AIO
1326
1327PROTOTYPES: ENABLE
1328
1329BOOT:
1330{
1331 HV *stash = gv_stashpv ("IO::AIO", 1);
1332
1333 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1334 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1335 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1336 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1337 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1338 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1339 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1340
1341 create_pipe ();
1342 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1343}
1344
1345void 1481void
1482reinit ()
1483 PROTOTYPE:
1484
1485void
1346max_poll_reqs (int nreqs) 1486max_poll_reqs (unsigned int nreqs)
1347 PROTOTYPE: $ 1487 PROTOTYPE: $
1348 CODE: 1488 CODE:
1349 max_poll_reqs = nreqs; 1489 eio_set_max_poll_reqs (nreqs);
1350 1490
1351void 1491void
1352max_poll_time (double nseconds) 1492max_poll_time (double nseconds)
1353 PROTOTYPE: $ 1493 PROTOTYPE: $
1354 CODE: 1494 CODE:
1355 max_poll_time = nseconds * AIO_TICKS; 1495 eio_set_max_poll_time (nseconds);
1356 1496
1357void 1497void
1358min_parallel (int nthreads) 1498min_parallel (unsigned int nthreads)
1359 PROTOTYPE: $
1360
1361void
1362max_parallel (int nthreads)
1363 PROTOTYPE: $
1364
1365void
1366max_idle (int nthreads)
1367 PROTOTYPE: $ 1499 PROTOTYPE: $
1368 CODE: 1500 CODE:
1369 set_max_idle (nthreads); 1501 eio_set_min_parallel (nthreads);
1370 1502
1371int 1503void
1372max_outstanding (int maxreqs) 1504max_parallel (unsigned int nthreads)
1373 PROTOTYPE: $ 1505 PROTOTYPE: $
1374 CODE: 1506 CODE:
1375 RETVAL = max_outstanding; 1507 eio_set_max_parallel (nthreads);
1508
1509void
1510max_idle (unsigned int nthreads)
1511 PROTOTYPE: $
1512 CODE:
1513 eio_set_max_idle (nthreads);
1514
1515void
1516idle_timeout (unsigned int seconds)
1517 PROTOTYPE: $
1518 CODE:
1519 eio_set_idle_timeout (seconds);
1520
1521void
1522max_outstanding (unsigned int maxreqs)
1523 PROTOTYPE: $
1524 CODE:
1376 max_outstanding = maxreqs; 1525 max_outstanding = maxreqs;
1377 OUTPUT:
1378 RETVAL
1379 1526
1380void 1527void
1381aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1528aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1382 PROTOTYPE: $$$;$
1383 PPCODE: 1529 PPCODE:
1384{ 1530{
1385 dREQ; 1531 dREQ;
1386 1532
1533 req->type = EIO_WD_OPEN;
1534 req_set_path1 (req, pathname);
1535
1536 REQ_SEND;
1537}
1538
1539void
1540aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1541 PPCODE:
1542{
1543 dREQ;
1544
1387 req->type = REQ_OPEN; 1545 req->type = EIO_OPEN;
1388 req->sv1 = newSVsv (pathname); 1546 req_set_path1 (req, pathname);
1389 req->ptr1 = SvPVbyte_nolen (req->sv1);
1390 req->int1 = flags; 1547 req->int1 = flags;
1391 req->mode = mode; 1548 req->int2 = mode;
1392 1549
1393 REQ_SEND; 1550 REQ_SEND;
1394} 1551}
1395 1552
1396void 1553void
1397aio_close (SV *fh, SV *callback=&PL_sv_undef) 1554aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1398 PROTOTYPE: $;$
1399 ALIAS: 1555 ALIAS:
1400 aio_close = REQ_CLOSE
1401 aio_fsync = REQ_FSYNC 1556 aio_fsync = EIO_FSYNC
1402 aio_fdatasync = REQ_FDATASYNC 1557 aio_fdatasync = EIO_FDATASYNC
1558 aio_syncfs = EIO_SYNCFS
1403 PPCODE: 1559 PPCODE:
1404{ 1560{
1561 int fd = s_fileno_croak (fh, 0);
1405 dREQ; 1562 dREQ;
1406 1563
1407 req->type = ix; 1564 req->type = ix;
1408 req->sv1 = newSVsv (fh); 1565 req->sv1 = newSVsv (fh);
1409 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1566 req->int1 = fd;
1410 1567
1411 REQ_SEND (req); 1568 REQ_SEND;
1412} 1569}
1413 1570
1414void 1571void
1572aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1573 PPCODE:
1574{
1575 int fd = s_fileno_croak (fh, 0);
1576 dREQ;
1577
1578 req->type = EIO_SYNC_FILE_RANGE;
1579 req->sv1 = newSVsv (fh);
1580 req->int1 = fd;
1581 req->offs = offset;
1582 req->size = nbytes;
1583 req->int2 = flags;
1584
1585 REQ_SEND;
1586}
1587
1588void
1589aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1590 PPCODE:
1591{
1592 int fd = s_fileno_croak (fh, 0);
1593 dREQ;
1594
1595 req->type = EIO_FALLOCATE;
1596 req->sv1 = newSVsv (fh);
1597 req->int1 = fd;
1598 req->int2 = mode;
1599 req->offs = offset;
1600 req->size = len;
1601
1602 REQ_SEND;
1603}
1604
1605void
1606aio_close (SV *fh, SV *callback = &PL_sv_undef)
1607 PPCODE:
1608{
1609 int fd = s_fileno_croak (fh, 0);
1610 dREQ;
1611#if 0
1612 /* partially duplicate logic in s_fileno */
1613 SvGETMAGIC (fh);
1614
1615 if (SvROK (fh))
1616 {
1617 fh = SvRV (fh);
1618 SvGETMAGIC (fh);
1619 }
1620
1621 if (SvTYPE (fh) == SVt_PVGV)
1622 {
1623 /* perl filehandle */
1624 PerlIOUnix_refcnt_inc (fd);
1625 do_close ((GV *)fh, 1);
1626
1627 req->type = EIO_CLOSE;
1628 req->int1 = fd;
1629 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1630 }
1631 else
1632#endif
1633 {
1634 /* fd number */
1635 req->type = EIO_DUP2;
1636 req->int1 = close_fd;
1637 req->sv2 = newSVsv (fh);
1638 req->int2 = fd;
1639 }
1640
1641 REQ_SEND;
1642}
1643
1644void
1645aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1646 PPCODE:
1647{
1648 int fd = s_fileno_croak (fh, 0);
1649 dREQ;
1650
1651 req->type = EIO_SEEK;
1652 req->sv1 = newSVsv (fh);
1653 req->int1 = fd;
1654 req->offs = SvVAL64 (offset);
1655 req->int2 = whence;
1656
1657 REQ_SEND;
1658}
1659
1660void
1415aio_read (SV *fh, UV offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1661aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1416 ALIAS: 1662 ALIAS:
1417 aio_read = REQ_READ 1663 aio_read = EIO_READ
1418 aio_write = REQ_WRITE 1664 aio_write = EIO_WRITE
1419 PROTOTYPE: $$$$$;$
1420 PPCODE: 1665 PPCODE:
1421{ 1666{
1422 STRLEN svlen; 1667 STRLEN svlen;
1668 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1423 char *svptr = SvPVbyte (data, svlen); 1669 char *svptr = SvPVbyte (data, svlen);
1424 1670 UV len = SvUV (length);
1425 SvUPGRADE (data, SVt_PV);
1426 SvPOK_on (data);
1427 1671
1428 if (dataoffset < 0) 1672 if (dataoffset < 0)
1429 dataoffset += svlen; 1673 dataoffset += svlen;
1430 1674
1431 if (dataoffset < 0 || dataoffset > svlen) 1675 if (dataoffset < 0 || dataoffset > svlen)
1432 croak ("data offset outside of string"); 1676 croak ("dataoffset outside of data scalar");
1433 1677
1434 if (ix == REQ_WRITE) 1678 if (ix == EIO_WRITE)
1435 { 1679 {
1436 /* write: check length and adjust. */ 1680 /* write: check length and adjust. */
1437 if (length < 0 || length + dataoffset > svlen) 1681 if (!SvOK (length) || len + dataoffset > svlen)
1438 length = svlen - dataoffset; 1682 len = svlen - dataoffset;
1439 } 1683 }
1440 else 1684 else
1441 { 1685 {
1442 /* read: grow scalar as necessary */ 1686 /* read: check type and grow scalar as necessary */
1687 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1443 svptr = SvGROW (data, length + dataoffset + 1); 1688 svptr = sv_grow (data, len + dataoffset + 1);
1689 else if (SvCUR (data) < len + dataoffset)
1690 croak ("length + dataoffset outside of scalar, and cannot grow");
1444 } 1691 }
1445
1446 if (length < 0)
1447 croak ("length must not be negative");
1448 1692
1449 { 1693 {
1450 dREQ; 1694 dREQ;
1451 1695
1452 req->type = ix; 1696 req->type = ix;
1453 req->sv1 = newSVsv (fh); 1697 req->sv1 = newSVsv (fh);
1454 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1698 req->int1 = fd;
1455 : IoOFP (sv_2io (fh))); 1699 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1700 req->size = len;
1701 req->sv2 = SvREFCNT_inc (data);
1702 req->ptr2 = (char *)svptr + dataoffset;
1703 req->stroffset = dataoffset;
1704
1705 if (!SvREADONLY (data))
1706 {
1707 SvREADONLY_on (data);
1708 req->flags |= FLAG_SV2_RO_OFF;
1709 }
1710
1711 REQ_SEND;
1712 }
1713}
1714
1715void
1716aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1717 ALIAS:
1718 aio_ioctl = EIO_IOCTL
1719 aio_fcntl = EIO_FCNTL
1720 PPCODE:
1721{
1722 int fd = s_fileno_croak (fh, 0);
1723 char *svptr;
1724
1725 if (SvPOK (arg) || !SvNIOK (arg))
1726 {
1727 STRLEN svlen;
1728 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1729#ifdef IOCPARM_LEN
1730 STRLEN need = IOCPARM_LEN (request);
1731#else
1732 STRLEN need = 256;
1733#endif
1734
1735 if (svlen < need)
1736 svptr = SvGROW (arg, need);
1737 }
1738 else
1739 svptr = (char *)SvIV (arg);
1740
1741 {
1742 dREQ;
1743
1744 req->type = ix;
1745 req->sv1 = newSVsv (fh);
1746 req->int1 = fd;
1747 req->int2 = (long)request;
1748 req->sv2 = SvREFCNT_inc (arg);
1749 req->ptr2 = svptr;
1750
1751 REQ_SEND;
1752 }
1753}
1754
1755void
1756aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1757 ALIAS:
1758 aio_readlink = EIO_READLINK
1759 aio_realpath = EIO_REALPATH
1760 PPCODE:
1761{
1762 dREQ;
1763
1764 req->type = ix;
1765 req_set_path1 (req, pathname);
1766
1767 REQ_SEND;
1768}
1769
1770void
1771aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1772 PPCODE:
1773{
1774 int ifd = s_fileno_croak (in_fh , 0);
1775 int ofd = s_fileno_croak (out_fh, 1);
1776 dREQ;
1777
1778 req->type = EIO_SENDFILE;
1779 req->sv1 = newSVsv (out_fh);
1780 req->int1 = ofd;
1781 req->sv2 = newSVsv (in_fh);
1782 req->int2 = ifd;
1783 req->offs = in_offset;
1784 req->size = length;
1785
1786 REQ_SEND;
1787}
1788
1789void
1790aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1791 PPCODE:
1792{
1793 int fd = s_fileno_croak (fh, 0);
1794 dREQ;
1795
1796 req->type = EIO_READAHEAD;
1797 req->sv1 = newSVsv (fh);
1798 req->int1 = fd;
1799 req->offs = offset;
1800 req->size = length;
1801
1802 REQ_SEND;
1803}
1804
1805void
1806aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1807 ALIAS:
1808 aio_stat = EIO_STAT
1809 aio_lstat = EIO_LSTAT
1810 aio_statvfs = EIO_STATVFS
1811 PPCODE:
1812{
1813 dREQ;
1814
1815 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1816
1817 REQ_SEND;
1818}
1819
1820void
1821st_xtime ()
1822 ALIAS:
1823 st_atime = 0x01
1824 st_mtime = 0x02
1825 st_ctime = 0x04
1826 st_btime = 0x08
1827 st_xtime = 0x0f
1828 PPCODE:
1829 EXTEND (SP, 4);
1830 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1831 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1832 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1833 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1834
1835void
1836st_xtimensec ()
1837 ALIAS:
1838 st_atimensec = 0x01
1839 st_mtimensec = 0x02
1840 st_ctimensec = 0x04
1841 st_btimensec = 0x08
1842 st_xtimensec = 0x0f
1843 st_btimesec = 0x10
1844 st_gen = 0x20
1845 PPCODE:
1846 EXTEND (SP, 4);
1847 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1848 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1849 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1850 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1851 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1852 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1853
1854UV
1855major (UV dev)
1856 ALIAS:
1857 minor = 1
1858 CODE:
1859 RETVAL = ix ? minor (dev) : major (dev);
1860 OUTPUT:
1861 RETVAL
1862
1863UV
1864makedev (UV maj, UV min)
1865 CODE:
1866 RETVAL = makedev (maj, min);
1867 OUTPUT:
1868 RETVAL
1869
1870void
1871aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1872 PPCODE:
1873{
1874 dREQ;
1875
1876 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1877 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1878 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1879
1880 REQ_SEND;
1881}
1882
1883void
1884aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1885 PPCODE:
1886{
1887 dREQ;
1888
1889 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1890 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1891
1892 REQ_SEND;
1893}
1894
1895void
1896aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1897 PPCODE:
1898{
1899 dREQ;
1900
1901 req->int2 = mode;
1902 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1903
1904 REQ_SEND;
1905}
1906
1907void
1908aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1909 PPCODE:
1910{
1911 dREQ;
1912
1913 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1914 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1915 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1916
1917 REQ_SEND;
1918}
1919
1920void
1921aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1922 PPCODE:
1923{
1924 dREQ;
1925
1926 req->type = EIO_READDIR;
1927 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1928
1929 if (flags & EIO_READDIR_DENTS)
1930 req->int1 |= EIO_READDIR_CUSTOM2;
1931
1932 req_set_path1 (req, pathname);
1933
1934 REQ_SEND;
1935}
1936
1937void
1938aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1939 PPCODE:
1940{
1941 dREQ;
1942
1943 req->type = EIO_MKDIR;
1944 req->int2 = mode;
1945 req_set_path1 (req, pathname);
1946
1947 REQ_SEND;
1948}
1949
1950void
1951aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1952 ALIAS:
1953 aio_unlink = EIO_UNLINK
1954 aio_rmdir = EIO_RMDIR
1955 aio_readdir = EIO_READDIR
1956 PPCODE:
1957{
1958 dREQ;
1959
1960 req->type = ix;
1961 req_set_path1 (req, pathname);
1962
1963 REQ_SEND;
1964}
1965
1966void
1967aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1968 ALIAS:
1969 aio_link = EIO_LINK
1970 aio_symlink = EIO_SYMLINK
1971 aio_rename = EIO_RENAME
1972 PPCODE:
1973{
1974 eio_wd wd2 = 0;
1975 dREQ;
1976
1977 req->type = ix;
1978 req_set_path1 (req, oldpath);
1979 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1980 req->int3 = (long)wd2;
1981
1982 REQ_SEND;
1983}
1984
1985void
1986aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1987 PPCODE:
1988{
1989 eio_wd wd2 = 0;
1990 dREQ;
1991
1992 req->type = EIO_RENAME;
1993 req_set_path1 (req, oldpath);
1994 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1995 req->int2 = flags;
1996 req->int3 = (long)wd2;
1997
1998 REQ_SEND;
1999}
2000
2001void
2002aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
2003 PPCODE:
2004{
2005 dREQ;
2006
2007 req->type = EIO_MKNOD;
2008 req->int2 = (mode_t)mode;
2009 req->offs = dev;
2010 req_set_path1 (req, pathname);
2011
2012 REQ_SEND;
2013}
2014
2015void
2016aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2017 ALIAS:
2018 aio_mtouch = EIO_MTOUCH
2019 aio_msync = EIO_MSYNC
2020 PPCODE:
2021{
2022 STRLEN svlen;
2023 char *svptr = SvPVbyte (data, svlen);
2024 UV len = SvUV (length);
2025
2026 if (flags < 0)
2027 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2028
2029 if (offset < 0)
2030 offset += svlen;
2031
2032 if (offset < 0 || offset > svlen)
2033 croak ("offset outside of scalar");
2034
2035 if (!SvOK (length) || len + offset > svlen)
2036 len = svlen - offset;
2037
2038 {
2039 dREQ;
2040
2041 req->type = ix;
2042 req->sv2 = SvREFCNT_inc (data);
2043 req->ptr2 = (char *)svptr + offset;
2044 req->size = len;
2045 req->int1 = flags;
2046
2047 REQ_SEND;
2048 }
2049}
2050
2051void
2052aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2053 PPCODE:
2054{
2055 STRLEN svlen;
2056 char *svptr = SvPVbyte (data, svlen);
2057 UV len = SvUV (length);
2058
2059 if (offset < 0)
2060 offset += svlen;
2061
2062 if (offset < 0 || offset > svlen)
2063 croak ("offset outside of scalar");
2064
2065 if (!SvOK (length) || len + offset > svlen)
2066 len = svlen - offset;
2067
2068 {
2069 dREQ;
2070
2071 req->type = EIO_MLOCK;
2072 req->sv2 = SvREFCNT_inc (data);
2073 req->ptr2 = (char *)svptr + offset;
2074 req->size = len;
2075
2076 REQ_SEND;
2077 }
2078}
2079
2080void
2081aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2082 PPCODE:
2083{
2084 dREQ;
2085
2086 req->type = EIO_MLOCKALL;
2087 req->int1 = flags;
2088
2089 REQ_SEND;
2090}
2091
2092void
2093aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2094 PPCODE:
2095{
2096 int fd = s_fileno_croak (fh, 0);
2097 dREQ;
2098
2099 req->type = EIO_CUSTOM;
2100 req->sv1 = newSVsv (fh);
2101 req->int1 = fd;
2102
2103 req->feed = fiemap;
2104#if HAVE_FIEMAP
2105 /* keep our fingers crossed that the next two types are 64 bit */
2106 req->offs = start;
2107 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2108 req->int2 = flags;
2109 req->int3 = SvOK (count) ? SvIV (count) : -1;
2110#endif
2111
2112 REQ_SEND;
2113}
2114
2115void
2116aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2117 PPCODE:
2118{
2119 char *svptr = 0;
2120
2121 sv_clear_foreign (data);
2122
2123 if (length) /* known length, directly read into scalar */
2124 {
2125 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2126 svptr = sv_grow (data, length + 1);
2127 else if (SvCUR (data) < length)
2128 croak ("length outside of scalar, and cannot grow");
2129 else
2130 svptr = SvPVbyte_nolen (data);
2131 }
2132
2133 {
2134 dREQ;
2135
2136 req->type = EIO_SLURP;
2137 req_set_path1 (req, pathname);
1456 req->offs = offset; 2138 req->offs = offset;
1457 req->size = length; 2139 req->size = length;
1458 req->sv2 = SvREFCNT_inc (data); 2140 req->sv2 = SvREFCNT_inc (data);
1459 req->ptr1 = (char *)svptr + dataoffset; 2141 req->ptr2 = svptr;
1460 req->stroffset = dataoffset;
1461 2142
1462 if (!SvREADONLY (data)) 2143 if (!SvREADONLY (data))
1463 { 2144 {
1464 SvREADONLY_on (data); 2145 SvREADONLY_on (data);
1465 req->flags |= FLAG_SV1_RO_OFF; 2146 req->flags |= FLAG_SV2_RO_OFF;
1466 } 2147 }
1467 2148
1468 REQ_SEND; 2149 REQ_SEND;
1469 } 2150 }
1470} 2151}
1471 2152
1472void 2153void
1473aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 2154aio_busy (double delay, SV *callback = &PL_sv_undef)
1474 PROTOTYPE: $$;$ 2155 PPCODE:
2156{
2157 dREQ;
2158
2159 req->type = EIO_BUSY;
2160 req->nv1 = delay < 0. ? 0. : delay;
2161
2162 REQ_SEND;
2163}
2164
2165void
2166aio_group (SV *callback = &PL_sv_undef)
1475 PPCODE: 2167 PPCODE:
1476{ 2168{
1477 SV *data;
1478 dREQ;
1479
1480 data = newSV (NAME_MAX);
1481 SvPOK_on (data);
1482
1483 req->type = REQ_READLINK;
1484 req->sv1 = newSVsv (path);
1485 req->ptr2 = SvPVbyte_nolen (req->sv1);
1486 req->sv2 = data;
1487 req->ptr1 = SvPVbyte_nolen (data);
1488
1489 REQ_SEND;
1490}
1491
1492void
1493aio_sendfile (SV *out_fh, SV *in_fh, UV in_offset, UV length, SV *callback=&PL_sv_undef)
1494 PROTOTYPE: $$$$;$
1495 PPCODE:
1496{
1497 dREQ; 2169 dREQ;
1498 2170
1499 req->type = REQ_SENDFILE; 2171 req->type = EIO_GROUP;
1500 req->sv1 = newSVsv (out_fh);
1501 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1502 req->sv2 = newSVsv (in_fh);
1503 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1504 req->offs = in_offset;
1505 req->size = length;
1506 2172
1507 REQ_SEND; 2173 PUTBACK;
1508} 2174 req_submit (req);
2175 SPAGAIN;
1509 2176
2177 XPUSHs (req_sv (req, aio_grp_stash));
2178}
2179
1510void 2180void
1511aio_readahead (SV *fh, UV offset, IV length, SV *callback=&PL_sv_undef) 2181aio_nop (SV *callback = &PL_sv_undef)
1512 PROTOTYPE: $$$;$ 2182 ALIAS:
1513 PPCODE: 2183 aio_nop = EIO_NOP
2184 aio_sync = EIO_SYNC
2185 PPCODE:
1514{ 2186{
1515 dREQ; 2187 dREQ;
1516 2188
1517 req->type = REQ_READAHEAD;
1518 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1520 req->offs = offset;
1521 req->size = length;
1522
1523 REQ_SEND;
1524}
1525
1526void
1527aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1528 ALIAS:
1529 aio_stat = REQ_STAT
1530 aio_lstat = REQ_LSTAT
1531 PPCODE:
1532{
1533 dREQ;
1534
1535 req->ptr2 = malloc (sizeof (Stat_t));
1536 if (!req->ptr2)
1537 {
1538 req_free (req);
1539 croak ("out of memory during aio_stat statdata allocation");
1540 }
1541
1542 req->flags |= FLAG_PTR2_FREE;
1543 req->sv1 = newSVsv (fh_or_path);
1544
1545 if (SvPOK (fh_or_path))
1546 {
1547 req->type = ix;
1548 req->ptr1 = SvPVbyte_nolen (req->sv1);
1549 }
1550 else
1551 {
1552 req->type = REQ_FSTAT;
1553 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1554 }
1555
1556 REQ_SEND;
1557}
1558
1559void
1560aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1561 PPCODE:
1562{
1563 dREQ;
1564
1565 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1566 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1567 req->sv1 = newSVsv (fh_or_path);
1568
1569 if (SvPOK (fh_or_path))
1570 {
1571 req->type = REQ_UTIME;
1572 req->ptr1 = SvPVbyte_nolen (req->sv1);
1573 }
1574 else
1575 {
1576 req->type = REQ_FUTIME;
1577 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1578 }
1579
1580 REQ_SEND;
1581}
1582
1583void
1584aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1585 PPCODE:
1586{
1587 dREQ;
1588
1589 req->mode = mode;
1590 req->sv1 = newSVsv (fh_or_path);
1591
1592 if (SvPOK (fh_or_path))
1593 {
1594 req->type = REQ_CHMOD;
1595 req->ptr1 = SvPVbyte_nolen (req->sv1);
1596 }
1597 else
1598 {
1599 req->type = REQ_FCHMOD;
1600 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1601 }
1602
1603 REQ_SEND;
1604}
1605
1606void
1607aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1608 PPCODE:
1609{
1610 dREQ;
1611
1612 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1613 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1614 req->sv1 = newSVsv (fh_or_path);
1615
1616 if (SvPOK (fh_or_path))
1617 {
1618 req->type = REQ_CHOWN;
1619 req->ptr1 = SvPVbyte_nolen (req->sv1);
1620 }
1621 else
1622 {
1623 req->type = REQ_FCHOWN;
1624 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1625 }
1626
1627 REQ_SEND;
1628}
1629
1630void
1631aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1632 ALIAS:
1633 aio_unlink = REQ_UNLINK
1634 aio_rmdir = REQ_RMDIR
1635 aio_readdir = REQ_READDIR
1636 PPCODE:
1637{
1638 dREQ;
1639
1640 req->type = ix; 2189 req->type = ix;
1641 req->sv1 = newSVsv (pathname);
1642 req->ptr1 = SvPVbyte_nolen (req->sv1);
1643 2190
1644 REQ_SEND; 2191 REQ_SEND;
1645} 2192}
1646 2193
1647void
1648aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1649 PPCODE:
1650{
1651 dREQ;
1652
1653 req->type = REQ_MKDIR;
1654 req->sv1 = newSVsv (pathname);
1655 req->ptr1 = SvPVbyte_nolen (req->sv1);
1656 req->mode = mode;
1657
1658 REQ_SEND;
1659}
1660
1661void
1662aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1663 ALIAS:
1664 aio_link = REQ_LINK
1665 aio_symlink = REQ_SYMLINK
1666 aio_rename = REQ_RENAME
1667 PPCODE:
1668{
1669 dREQ;
1670
1671 req->type = ix;
1672 req->sv2 = newSVsv (oldpath);
1673 req->ptr2 = SvPVbyte_nolen (req->sv2);
1674 req->sv1 = newSVsv (newpath);
1675 req->ptr1 = SvPVbyte_nolen (req->sv1);
1676
1677 REQ_SEND;
1678}
1679
1680void
1681aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1682 PPCODE:
1683{
1684 dREQ;
1685
1686 req->type = REQ_MKNOD;
1687 req->sv1 = newSVsv (pathname);
1688 req->ptr1 = SvPVbyte_nolen (req->sv1);
1689 req->mode = (mode_t)mode;
1690 req->offs = dev;
1691
1692 REQ_SEND;
1693}
1694
1695void
1696aio_busy (double delay, SV *callback=&PL_sv_undef)
1697 PPCODE:
1698{
1699 dREQ;
1700
1701 req->type = REQ_BUSY;
1702 req->nv1 = delay < 0. ? 0. : delay;
1703
1704 REQ_SEND;
1705}
1706
1707void
1708aio_group (SV *callback=&PL_sv_undef)
1709 PROTOTYPE: ;$
1710 PPCODE:
1711{
1712 dREQ;
1713
1714 req->type = REQ_GROUP;
1715
1716 req_send (req);
1717 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1718}
1719
1720void
1721aio_nop (SV *callback=&PL_sv_undef)
1722 PPCODE:
1723{
1724 dREQ;
1725
1726 req->type = REQ_NOP;
1727
1728 REQ_SEND;
1729}
1730
1731int 2194int
1732aioreq_pri (int pri = 0) 2195aioreq_pri (int pri = NO_INIT)
1733 PROTOTYPE: ;$
1734 CODE: 2196 CODE:
1735 RETVAL = next_pri - PRI_BIAS; 2197 RETVAL = next_pri;
1736 if (items > 0) 2198 if (items > 0)
1737 { 2199 {
1738 if (pri < PRI_MIN) pri = PRI_MIN; 2200 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1739 if (pri > PRI_MAX) pri = PRI_MAX; 2201 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1740 next_pri = pri + PRI_BIAS; 2202 next_pri = pri;
1741 } 2203 }
1742 OUTPUT: 2204 OUTPUT:
1743 RETVAL 2205 RETVAL
1744 2206
1745void 2207void
1746aioreq_nice (int nice = 0) 2208aioreq_nice (int nice = 0)
1747 CODE: 2209 CODE:
1748 nice = next_pri - nice; 2210 nice = next_pri - nice;
1749 if (nice < PRI_MIN) nice = PRI_MIN; 2211 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1750 if (nice > PRI_MAX) nice = PRI_MAX; 2212 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1751 next_pri = nice + PRI_BIAS; 2213 next_pri = nice;
1752 2214
1753void 2215void
1754flush () 2216flush ()
1755 PROTOTYPE:
1756 CODE: 2217 CODE:
1757 while (nreqs) 2218 while (eio_nreqs ())
1758 { 2219 {
1759 poll_wait (); 2220 poll_wait ();
1760 poll_cb (); 2221 poll_cb ();
1761 } 2222 }
1762 2223
1763int 2224int
1764poll() 2225poll ()
1765 PROTOTYPE:
1766 CODE: 2226 CODE:
1767 poll_wait (); 2227 poll_wait ();
1768 RETVAL = poll_cb (); 2228 RETVAL = poll_cb ();
1769 OUTPUT: 2229 OUTPUT:
1770 RETVAL 2230 RETVAL
1771 2231
1772int 2232int
1773poll_fileno() 2233poll_fileno ()
1774 PROTOTYPE:
1775 CODE: 2234 CODE:
1776 RETVAL = respipe [0]; 2235 RETVAL = s_epipe_fd (&respipe);
1777 OUTPUT: 2236 OUTPUT:
1778 RETVAL 2237 RETVAL
1779 2238
1780int 2239int
1781poll_cb(...) 2240poll_cb (...)
1782 PROTOTYPE: 2241 PROTOTYPE:
1783 CODE: 2242 CODE:
1784 RETVAL = poll_cb (); 2243 RETVAL = poll_cb ();
1785 OUTPUT: 2244 OUTPUT:
1786 RETVAL 2245 RETVAL
1787 2246
1788void 2247void
1789poll_wait() 2248poll_wait ()
2249 CODE:
2250 poll_wait ();
2251
2252int
2253nreqs ()
2254 CODE:
2255 RETVAL = eio_nreqs ();
2256 OUTPUT:
2257 RETVAL
2258
2259int
2260nready ()
2261 CODE:
2262 RETVAL = eio_nready ();
2263 OUTPUT:
2264 RETVAL
2265
2266int
2267npending ()
2268 CODE:
2269 RETVAL = eio_npending ();
2270 OUTPUT:
2271 RETVAL
2272
2273int
2274nthreads ()
2275 CODE:
2276 RETVAL = eio_nthreads ();
2277 OUTPUT:
2278 RETVAL
2279
2280int
2281fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2282 CODE:
2283 RETVAL = posix_fadvise (fh, offset, length, advice);
2284 OUTPUT:
2285 RETVAL
2286
2287IV
2288sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2289 CODE:
2290 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2291 OUTPUT:
2292 RETVAL
2293
2294void
2295mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2296 PPCODE:
2297 sv_clear_foreign (scalar);
2298{
2299 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2300 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2301 if (addr == (void *)-1)
2302 XSRETURN_NO;
2303
2304 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2305
2306 if (!(prot & PROT_WRITE))
2307 SvREADONLY_on (scalar);
2308
2309 XSRETURN_YES;
2310}
2311
2312void
2313munmap (SV *scalar)
2314 CODE:
2315 sv_clear_foreign (scalar);
2316
2317SV *
2318mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2319 CODE:
2320{
2321 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2322 void *new;
2323
2324 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2325 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2326
2327 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2328
2329 RETVAL = &PL_sv_no;
2330
2331 if (new != (void *)-1)
2332 {
2333 RETVAL = new == (void *)mg->mg_ptr
2334 ? newSVpvn ("0 but true", 10)
2335 : &PL_sv_yes;
2336
2337 mg->mg_ptr = (char *)new;
2338 mg->mg_obj = (SV *)new_length;
2339
2340 SvPVX (scalar) = mg->mg_ptr;
2341 SvCUR_set (scalar, new_length);
2342 }
2343}
2344 OUTPUT:
2345 RETVAL
2346
2347int
2348madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2349 ALIAS:
2350 mprotect = 1
2351 CODE:
2352{
2353 STRLEN svlen;
2354 void *addr = SvPVbyte (scalar, svlen);
2355 STRLEN len = SvUV (length);
2356
2357 if (offset < 0)
2358 offset += svlen;
2359
2360 if (offset < 0 || offset > svlen)
2361 croak ("offset outside of scalar");
2362
2363 if (!SvOK (length) || len + offset > svlen)
2364 len = svlen - offset;
2365
2366 addr = (void *)(((intptr_t)addr) + offset);
2367 eio_page_align (&addr, &len);
2368
2369 switch (ix)
2370 {
2371 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2372 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2373 }
2374}
2375 OUTPUT:
2376 RETVAL
2377
2378int
2379munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2380 CODE:
2381{
2382 STRLEN svlen;
2383 void *addr = SvPVbyte (scalar, svlen);
2384 size_t len = SvUV (length);
2385
2386 if (offset < 0)
2387 offset += svlen;
2388
2389 if (offset < 0 || offset > svlen)
2390 croak ("offset outside of scalar");
2391
2392 if (!SvOK (length) || len + offset > svlen)
2393 len = svlen - offset;
2394
2395 addr = (void *)(((intptr_t)addr) + offset);
2396 eio_page_align (&addr, &len);
2397#if _POSIX_MEMLOCK_RANGE
2398 RETVAL = munlock (addr, len);
2399#else
2400 RETVAL = EIO_ENOSYS ();
2401#endif
2402}
2403 OUTPUT:
2404 RETVAL
2405
2406int
2407mlockall (int flags)
2408 PROTOTYPE: $;
2409 CODE:
2410 RETVAL = eio_mlockall_sync (flags);
2411 OUTPUT:
2412 RETVAL
2413
2414int
2415munlockall ()
2416 CODE:
2417#if _POSIX_MEMLOCK
2418 munlockall ();
2419#else
2420 RETVAL = EIO_ENOSYS ();
2421#endif
2422 OUTPUT:
2423 RETVAL
2424
2425int
2426statx (SV8 *pathname, int flags, UV mask)
2427 CODE:
2428{
2429 /* undocumented, and might go away, and anyway, should use eio_statx */
2430 SV *wdsv = 0;
2431 SV *pathsv = 0;
2432 eio_wd wd = EIO_CWD;
2433 void *ptr;
2434 int res;
2435
2436 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2437 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2438
2439 SvREFCNT_dec (pathsv);
2440 SvREFCNT_dec (wdsv);
2441}
2442 OUTPUT:
2443 RETVAL
2444
2445U32
2446stx_mode ()
1790 PROTOTYPE: 2447 PROTOTYPE:
1791 CODE: 2448 CODE:
1792 poll_wait (); 2449#if HAVE_STATX
2450 RETVAL = stx.stx_mode;
2451#else
2452 XSRETURN_UNDEF;
2453#endif
2454 OUTPUT:
2455 RETVAL
1793 2456
2457#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2458#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2459#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2460#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2461#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2462#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2463#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2464#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2465#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2466#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2467#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2468#define STATX_OFFSET_size statx_offsetof (stx_size)
2469#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2470#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2471#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2472#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2473#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2474#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2475
2476U32
2477stx_mask ()
2478 PROTOTYPE:
2479 ALIAS:
2480 stx_mask = STATX_OFFSET_mask
2481 stx_blksize = STATX_OFFSET_blksize
2482 stx_nlink = STATX_OFFSET_nlink
2483 stx_uid = STATX_OFFSET_uid
2484 stx_gid = STATX_OFFSET_gid
2485 stx_rdev_major = STATX_OFFSET_rdev_major
2486 stx_rdev_minor = STATX_OFFSET_rdev_minor
2487 stx_dev_major = STATX_OFFSET_dev_major
2488 stx_dev_minor = STATX_OFFSET_dev_minor
2489 CODE:
2490#if HAVE_STATX
2491 RETVAL = *(__u32 *)((char *)&stx + ix);
2492#else
2493 XSRETURN_UNDEF;
2494#endif
2495 OUTPUT:
2496 RETVAL
2497
2498VAL64
2499stx_attributes ()
2500 PROTOTYPE:
2501 ALIAS:
2502 stx_attributes = STATX_OFFSET_attributes
2503 stx_ino = STATX_OFFSET_ino
2504 stx_size = STATX_OFFSET_size
2505 stx_blocks = STATX_OFFSET_blocks
2506 stx_attributes_mask = STATX_OFFSET_attributes_mask
2507 CODE:
2508#if HAVE_STATX
2509 RETVAL = *(__u64 *)((char *)&stx + ix);
2510#else
2511 XSRETURN_UNDEF;
2512#endif
2513 OUTPUT:
2514 RETVAL
2515
2516NV
2517stx_atime ()
2518 PROTOTYPE:
2519 ALIAS:
2520 stx_atime = STATX_OFFSET_atime
2521 stx_btime = STATX_OFFSET_btime
2522 stx_ctime = STATX_OFFSET_ctime
2523 stx_mtime = STATX_OFFSET_mtime
2524 CODE:
2525#if HAVE_STATX
2526 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2527 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2528#else
2529 XSRETURN_UNDEF;
2530#endif
2531 OUTPUT:
2532 RETVAL
2533
2534VAL64
2535stx_atimesec ()
2536 PROTOTYPE:
2537 ALIAS:
2538 stx_atimesec = STATX_OFFSET_atime
2539 stx_btimesec = STATX_OFFSET_btime
2540 stx_ctimesec = STATX_OFFSET_ctime
2541 stx_mtimesec = STATX_OFFSET_mtime
2542 CODE:
2543#if HAVE_STATX
2544 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2545 RETVAL = ts->tv_sec;
2546#else
2547 XSRETURN_UNDEF;
2548#endif
2549 OUTPUT:
2550 RETVAL
2551
2552U32
2553stx_atimensec ()
2554 PROTOTYPE:
2555 ALIAS:
2556 stx_atimensec = STATX_OFFSET_atime
2557 stx_btimensec = STATX_OFFSET_btime
2558 stx_ctimensec = STATX_OFFSET_ctime
2559 stx_mtimensec = STATX_OFFSET_mtime
2560 CODE:
2561#if HAVE_STATX
2562 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2563 RETVAL = ts->tv_nsec;
2564#else
2565 RETVAL = 0;
2566#endif
2567 OUTPUT:
2568 RETVAL
2569
1794void 2570void
1795setsig (int signum = SIGIO) 2571accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2572 PPCODE:
2573{
2574 SV *retval;
2575#if HAVE_ACCEPT4
2576 socklen_t salen_ = salen ? salen + 1 : 0;
2577
2578 if (salen)
2579 {
2580 sv_upgrade (sockaddr, SVt_PV);
2581 sv_grow (sockaddr, salen_);
2582 }
2583
2584 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2585
2586 retval = newmortalFH (res, O_RDWR);
2587
2588 if (res >= 0 && salen > 0)
2589 {
2590 if (salen_ > salen + 1)
2591 salen_ = salen + 1;
2592
2593 SvPOK_only (sockaddr);
2594 SvCUR_set (sockaddr, salen_);
2595 }
2596#else
2597 errno = ENOSYS;
2598 retval = &PL_sv_undef;
2599#endif
2600 XPUSHs (retval);
2601}
2602
2603ssize_t
2604splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2605 CODE:
2606{
2607#if HAVE_LINUX_SPLICE
2608 loff_t off_in_, off_out_;
2609 RETVAL = splice (
2610 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2611 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2612 length, flags
2613 );
2614#else
2615 RETVAL = EIO_ENOSYS ();
2616#endif
2617}
2618 OUTPUT:
2619 RETVAL
2620
2621ssize_t
2622tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2623 CODE:
2624#if HAVE_LINUX_SPLICE
2625 RETVAL = tee (rfh, wfh, length, flags);
2626#else
2627 RETVAL = EIO_ENOSYS ();
2628#endif
2629 OUTPUT:
2630 RETVAL
2631
2632int
2633pipesize (aio_rfd rfh, int new_size = -1)
2634 PROTOTYPE: $;$
2635 CODE:
2636#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2637 if (new_size >= 0)
2638 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2639 else
2640 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2641#else
2642 errno = ENOSYS;
2643 RETVAL = -1;
2644#endif
2645 OUTPUT:
2646 RETVAL
2647
2648void
2649pipe2 (int flags = 0)
1796 PROTOTYPE: ;$ 2650 PROTOTYPE: ;$
1797 CODE:
1798{
1799 if (block_sig_level)
1800 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1801
1802 LOCK (reslock);
1803 main_tid = pthread_self ();
1804 main_sig = signum;
1805 UNLOCK (reslock);
1806
1807 if (main_sig && npending)
1808 pthread_kill (main_tid, main_sig);
1809}
1810
1811void
1812aio_block (SV *cb)
1813 PROTOTYPE: &
1814 PPCODE: 2651 PPCODE:
1815{ 2652{
1816 int count; 2653 int fd[2];
2654 int res;
1817 2655
1818 block_sig (); 2656 if (flags)
1819 PUSHMARK (SP); 2657#if HAVE_PIPE2
1820 PUTBACK; 2658 res = pipe2 (fd, flags);
1821 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2659#else
1822 SPAGAIN; 2660 res = (errno = ENOSYS, -1);
1823 unblock_sig (); 2661#endif
2662 else
2663 res = pipe (fd);
1824 2664
1825 if (SvTRUE (ERRSV)) 2665 if (!res)
1826 croak (0); 2666 {
2667 EXTEND (SP, 2);
2668 PUSHs (newmortalFH (fd[0], O_RDONLY));
2669 PUSHs (newmortalFH (fd[1], O_WRONLY));
2670 }
2671}
1827 2672
1828 XSRETURN (count); 2673void
2674pidfd_open (int pid, unsigned int flags = 0)
2675 PPCODE:
2676{
2677 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2678 int fd = syscall (SYS_pidfd_open, pid, flags);
2679 XPUSHs (newmortalFH (fd, O_RDWR));
1829} 2680}
1830 2681
1831int 2682int
1832nreqs() 2683pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1833 PROTOTYPE: 2684 PPCODE:
2685{
2686 int res;
2687 siginfo_t si = { 0 };
2688
2689 if (SvOK (siginfo))
2690 {
2691 HV *hv;
2692 SV **svp;
2693
2694 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2695 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2696
2697 hv = (HV *)SvRV (siginfo);
2698
2699 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2700 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2701 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2702 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2703 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2704 }
2705
2706 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2707 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2708
2709 XPUSHs (sv_2mortal (newSViv (res)));
2710}
2711
2712void
2713pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2714 PPCODE:
2715{
2716 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2717 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2718 XPUSHs (newmortalFH (fd, O_RDWR));
2719}
2720
2721void
2722eventfd (unsigned int initval = 0, int flags = 0)
2723 PPCODE:
2724{
2725 int fd;
2726#if HAVE_EVENTFD
2727 fd = eventfd (initval, flags);
2728#else
2729 fd = (errno = ENOSYS, -1);
2730#endif
2731
2732 XPUSHs (newmortalFH (fd, O_RDWR));
2733}
2734
2735void
2736timerfd_create (int clockid, int flags = 0)
2737 PPCODE:
2738{
2739 int fd;
2740#if HAVE_TIMERFD
2741 fd = timerfd_create (clockid, flags);
2742#else
2743 fd = (errno = ENOSYS, -1);
2744#endif
2745
2746 XPUSHs (newmortalFH (fd, O_RDWR));
2747}
2748
2749void
2750timerfd_settime (SV *fh, int flags, NV interval, NV value)
2751 PPCODE:
2752{
2753 int fd = s_fileno_croak (fh, 0);
2754#if HAVE_TIMERFD
2755 int res;
2756 struct itimerspec its, ots;
2757
2758 ts_set (&its.it_interval, interval);
2759 ts_set (&its.it_value , value);
2760 res = timerfd_settime (fd, flags, &its, &ots);
2761
2762 if (!res)
2763 {
2764 EXTEND (SP, 2);
2765 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2766 PUSHs (newSVnv (ts_get (&ots.it_value)));
2767 }
2768#else
2769 errno = ENOSYS;
2770#endif
2771}
2772
2773void
2774timerfd_gettime (SV *fh)
2775 PPCODE:
2776{
2777 int fd = s_fileno_croak (fh, 0);
2778#if HAVE_TIMERFD
2779 int res;
2780 struct itimerspec ots;
2781 res = timerfd_gettime (fd, &ots);
2782
2783 if (!res)
2784 {
2785 EXTEND (SP, 2);
2786 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2787 PUSHs (newSVnv (ts_get (&ots.it_value)));
2788 }
2789#else
2790 errno = ENOSYS;
2791#endif
2792}
2793
2794void
2795memfd_create (SV8 *pathname, int flags = 0)
2796 PPCODE:
2797{
2798 int fd;
2799#if HAVE_MEMFD_CREATE
2800 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2801#else
2802 fd = (errno = ENOSYS, -1);
2803#endif
2804
2805 XPUSHs (newmortalFH (fd, O_RDWR));
2806}
2807
2808UV
2809get_fdlimit ()
1834 CODE: 2810 CODE:
1835 RETVAL = nreqs; 2811#if HAVE_RLIMITS
2812 struct rlimit rl;
2813 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2814 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2815#endif
2816 XSRETURN_UNDEF;
1836 OUTPUT: 2817 OUTPUT:
1837 RETVAL 2818 RETVAL
1838 2819
1839int 2820void
1840nready() 2821min_fdlimit (UV limit = 0x7fffffffU)
1841 PROTOTYPE:
1842 CODE: 2822 CODE:
1843 RETVAL = get_nready (); 2823{
1844 OUTPUT: 2824#if HAVE_RLIMITS
1845 RETVAL 2825 struct rlimit rl;
2826 rlim_t orig_rlim_max;
2827 UV bit;
1846 2828
1847int 2829 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1848npending() 2830 goto fail;
1849 PROTOTYPE: 2831
2832 if (rl.rlim_cur == RLIM_INFINITY)
2833 XSRETURN_YES;
2834
2835 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2836
2837 if (rl.rlim_cur < limit)
2838 {
2839 rl.rlim_cur = limit;
2840
2841 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2842 rl.rlim_max = rl.rlim_cur;
2843 }
2844
2845 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2846 XSRETURN_YES;
2847
2848 if (errno == EPERM)
2849 {
2850 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2851 /* our limit overflows a system-wide limit */
2852 /* try an adaptive algorithm, but do not lower the hardlimit */
2853 rl.rlim_max = 0;
2854 for (bit = 0x40000000U; bit; bit >>= 1)
2855 {
2856 rl.rlim_max |= bit;
2857 rl.rlim_cur = rl.rlim_max;
2858
2859 /* never decrease the hard limit */
2860 if (rl.rlim_max < orig_rlim_max)
2861 break;
2862
2863 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2864 rl.rlim_max &= ~bit; /* too high, remove bit again */
2865 }
2866
2867 /* now, raise the soft limit to the max permitted */
2868 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2869 {
2870 rl.rlim_cur = rl.rlim_max;
2871 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2872 errno = EPERM;
2873 }
2874 }
2875#endif
2876 fail:
2877 XSRETURN_UNDEF;
2878}
2879
2880void _on_next_submit (SV *cb)
1850 CODE: 2881 CODE:
1851 RETVAL = get_npending (); 2882 SvREFCNT_dec (on_next_submit);
1852 OUTPUT: 2883 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1853 RETVAL
1854 2884
1855int 2885PROTOTYPES: DISABLE
1856nthreads() 2886
1857 PROTOTYPE: 2887MODULE = IO::AIO PACKAGE = IO::AIO::WD
2888
2889BOOT:
2890{
2891 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2892 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2893}
2894
2895void
2896DESTROY (SV *self)
1858 CODE: 2897 CODE:
1859 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2898{
1860 RETVAL = started; 2899 aio_wd wd = SvAIO_WD (self);
1861 if (WORDACCESS_UNSAFE) UNLOCK (wrklock); 2900#if HAVE_AT
1862 OUTPUT: 2901 {
1863 RETVAL 2902 SV *callback = &PL_sv_undef;
1864 2903 dREQ; /* clobbers next_pri :/ */
1865PROTOTYPES: DISABLE 2904 next_pri = req->pri; /* restore next_pri */
2905 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2906 req->type = EIO_WD_CLOSE;
2907 req->wd = wd;
2908 REQ_SEND;
2909 }
2910#else
2911 eio_wd_close_sync (wd);
2912#endif
2913}
1866 2914
1867MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2915MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1868 2916
1869void 2917void
1870cancel (aio_req_ornot req) 2918cancel (aio_req_ornot req)
1871 CODE: 2919 CODE:
1872 req_cancel (req); 2920 eio_cancel (req);
1873 2921
1874void 2922void
1875cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2923cb (aio_req_ornot req, SV *callback = NO_INIT)
1876 CODE: 2924 PPCODE:
2925{
2926 if (GIMME_V != G_VOID)
2927 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2928
2929 if (items > 1)
2930 {
2931 SV *cb_cv = get_cb (callback);
2932
1877 SvREFCNT_dec (req->callback); 2933 SvREFCNT_dec (req->callback);
1878 req->callback = newSVsv (callback); 2934 req->callback = SvREFCNT_inc (cb_cv);
2935 }
2936}
1879 2937
1880MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2938MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1881 2939
1882void 2940void
1883add (aio_req grp, ...) 2941add (aio_req grp, ...)
1884 PPCODE: 2942 PPCODE:
1885{ 2943{
1886 int i; 2944 int i;
1887 aio_req req;
1888
1889 if (main_sig && !block_sig_level)
1890 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1891 2945
1892 if (grp->int1 == 2) 2946 if (grp->int1 == 2)
1893 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2947 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1894 2948
1895 for (i = 1; i < items; ++i ) 2949 for (i = 1; i < items; ++i )
1896 { 2950 {
2951 aio_req req;
2952
1897 if (GIMME_V != G_VOID) 2953 if (GIMME_V != G_VOID)
1898 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2954 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1899 2955
1900 req = SvAIO_REQ (ST (i)); 2956 req = SvAIO_REQ (ST (i));
1901 2957
1902 if (req) 2958 if (req)
1903 { 2959 eio_grp_add (grp, req);
1904 ++grp->size;
1905 req->grp = grp;
1906
1907 req->grp_prev = 0;
1908 req->grp_next = grp->grp_first;
1909
1910 if (grp->grp_first)
1911 grp->grp_first->grp_prev = req;
1912
1913 grp->grp_first = req;
1914 }
1915 } 2960 }
1916} 2961}
1917 2962
1918void 2963void
1919cancel_subs (aio_req_ornot req) 2964cancel_subs (aio_req_ornot req)
… …
1928 AV *av; 2973 AV *av;
1929 2974
1930 grp->errorno = errno; 2975 grp->errorno = errno;
1931 2976
1932 av = newAV (); 2977 av = newAV ();
2978 av_extend (av, items - 1);
1933 2979
1934 for (i = 1; i < items; ++i ) 2980 for (i = 1; i < items; ++i )
1935 av_push (av, newSVsv (ST (i))); 2981 av_push (av, newSVsv (ST (i)));
1936 2982
1937 SvREFCNT_dec (grp->sv1); 2983 SvREFCNT_dec (grp->sv1);
… …
1944 grp->errorno = errorno; 2990 grp->errorno = errorno;
1945 2991
1946void 2992void
1947limit (aio_req grp, int limit) 2993limit (aio_req grp, int limit)
1948 CODE: 2994 CODE:
1949 grp->int2 = limit; 2995 eio_grp_limit (grp, limit);
1950 aio_grp_feed (grp);
1951 2996
1952void 2997void
1953feed (aio_req grp, SV *callback=&PL_sv_undef) 2998feed (aio_req grp, SV *callback = &PL_sv_undef)
1954 CODE: 2999 CODE:
1955{ 3000{
1956 SvREFCNT_dec (grp->sv2); 3001 SvREFCNT_dec (grp->sv2);
1957 grp->sv2 = newSVsv (callback); 3002 grp->sv2 = newSVsv (callback);
3003 grp->feed = aio_grp_feed;
1958 3004
1959 if (grp->int2 <= 0) 3005 if (grp->int2 <= 0)
1960 grp->int2 = 2; 3006 grp->int2 = 2;
1961 3007
1962 aio_grp_feed (grp); 3008 eio_grp_limit (grp, grp->int2);
1963} 3009}
1964 3010

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