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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 1.265 by root, Tue Aug 14 11:50:43 2018 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 8
9#include "autoconf/config.h" 9#if !defined mg_findext
10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
11#endif
10 12
11#include <stddef.h> 13#include <stddef.h>
12#include <stdlib.h> 14#include <stdlib.h>
13#include <errno.h> 15#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
17#include <sys/stat.h> 18#include <sys/stat.h>
18#include <limits.h> 19#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 20#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 21#include <sched.h>
22
23#if HAVE_SYS_MKDEV_H
24# include <sys/mkdev.h>
25#elif HAVE_SYS_SYSMACROS_H
26# include <sys/sysmacros.h>
27#endif
28
29#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
30# include <sys/mman.h>
31#endif
32
33/* the incompetent fool that created musl keeps __linux__, refuses
34 * to implement any linux standard apis, and also has no way to test
35 * for his broken iplementation. don't complain to me if this fails
36 * for you.
37 */
38#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
39# include <linux/fs.h>
40# ifdef FS_IOC_FIEMAP
41# include <linux/types.h>
42# include <linux/fiemap.h>
43# define HAVE_FIEMAP 1
44# endif
45#endif
46
47/* perl namespace pollution */
48#undef VERSION
49
50/* perl stupidly overrides readdir and maybe others */
51/* with thread-unsafe versions, imagine that :( */
52#undef readdir
53#undef opendir
54#undef closedir
55
56#ifdef _WIN32
57
58 // perl overrides all those nice libc functions
59
60 #undef malloc
61 #undef free
62 #undef open
63 #undef read
64 #undef write
65 #undef send
66 #undef recv
67 #undef stat
68 #undef lstat
69 #undef fstat
70 #undef truncate
71 #undef ftruncate
72 #undef open
73 #undef link
74 #undef close
75 #undef unlink
76 #undef mkdir
77 #undef rmdir
78 #undef rename
79 #undef lseek
80 #undef opendir
81 #undef readdir
82 #undef closedir
83 #undef chmod
84 #undef fchmod
85 #undef dup
86 #undef dup2
87 #undef abort
88 #undef pipe
89
90 #define EIO_STRUCT_STAT struct _stati64
91 #define EIO_STRUCT_STATI64
92
93#else
94
95 #include <sys/time.h>
96 #include <sys/select.h>
97 #include <unistd.h>
23#include <utime.h> 98 #include <utime.h>
99 #include <signal.h>
24 100
25#if HAVE_SENDFILE 101 #define EIO_STRUCT_STAT Stat_t
26# if __linux 102
103#endif
104
105/*****************************************************************************/
106
107#if __GNUC__ >= 3
108# define expect(expr,value) __builtin_expect ((expr),(value))
109#else
110# define expect(expr,value) (expr)
111#endif
112
113#define expect_false(expr) expect ((expr) != 0, 0)
114#define expect_true(expr) expect ((expr) != 0, 1)
115
116/*****************************************************************************/
117
118#include "config.h"
119
120#if HAVE_ST_XTIMENSEC
121# define ATIMENSEC PL_statcache.st_atimensec
122# define MTIMENSEC PL_statcache.st_mtimensec
123# define CTIMENSEC PL_statcache.st_ctimensec
124#elif HAVE_ST_XTIMESPEC
125# define ATIMENSEC PL_statcache.st_atim.tv_nsec
126# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
127# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
128#else
129# define ATIMENSEC 0
130# define MTIMENSEC 0
131# define CTIMENSEC 0
132#endif
133
134#include "schmorp.h"
135
136#if HAVE_EVENTFD
27# include <sys/sendfile.h> 137# include <sys/eventfd.h>
28# elif __freebsd 138#endif
29# include <sys/socket.h> 139
140#if HAVE_TIMERFD
30# include <sys/uio.h> 141# include <sys/timerfd.h>
31# elif __hpux 142#endif
143
144#if HAVE_RLIMITS
145 #include <sys/time.h>
32# include <sys/socket.h> 146 #include <sys/resource.h>
33# elif __solaris /* not yet */ 147#endif
34# include <sys/sendfile.h> 148
149typedef SV SV8; /* byte-sv, used for argument-checking */
150typedef int aio_rfd; /* read file desriptor */
151typedef int aio_wfd; /* write file descriptor */
152
153static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
154
155#define EIO_REQ_MEMBERS \
156 SV *callback; \
157 SV *sv1, *sv2; \
158 SV *sv3, *sv4; \
159 STRLEN stroffset; \
160 SV *self;
161
162#define EIO_NO_WRAPPERS 1
163
164#include "libeio/eio.h"
165
166static int req_invoke (eio_req *req);
167#define EIO_FINISH(req) req_invoke (req)
168static void req_destroy (eio_req *grp);
169#define EIO_DESTROY(req) req_destroy (req)
170
171#include "libeio/eio.c"
172
173#if !HAVE_POSIX_FADVISE
174# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
175#endif
176
177#if !HAVE_POSIX_MADVISE
178# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
179#endif
180
181#ifndef MAP_ANONYMOUS
182# ifdef MAP_ANON
183# define MAP_ANONYMOUS MAP_ANON
35# else 184# else
36# error sendfile support requested but not available 185# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 186# endif
38#endif 187#endif
39 188
40/* number of seconds after which idle threads exit */ 189#ifndef makedev
41#define IDLE_TIMEOUT 10 190# 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 191#endif
192#ifndef major
193# define major(dev) ((dev) >> 8)
194#endif
195#ifndef minor
196# define minor(dev) ((dev) & 0xff)
197#endif
47 198
48/* buffer size for various temporary buffers */ 199#if PAGESIZE <= 0
49#define AIO_BUFSIZE 65536 200# define PAGESIZE sysconf (_SC_PAGESIZE)
201#endif
50 202
51#define dBUF \ 203/*****************************************************************************/
52 char *aio_buf; \ 204
53 LOCK (wrklock); \ 205#if !_POSIX_MAPPED_FILES
54 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 206# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
55 UNLOCK (wrklock); \ 207# define munmap(addr,length) EIO_ENOSYS ()
56 if (!aio_buf) \ 208#endif
209
210#if !_POSIX_MEMORY_PROTECTION
211# define mprotect(addr,len,prot) EIO_ENOSYS ()
212#endif
213
214#if !MREMAP_MAYMOVE
215# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
216#endif
217
218#define FOREIGN_MAGIC PERL_MAGIC_ext
219
220static int ecb_cold
221mmap_free (pTHX_ SV *sv, MAGIC *mg)
222{
223 int old_errno = errno;
224 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
225 errno = old_errno;
226
227 mg->mg_obj = 0; /* just in case */
228
229 SvREADONLY_off (sv);
230
231 if (SvPVX (sv) != mg->mg_ptr)
232 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
233
234 SvCUR_set (sv, 0);
235 SvPVX (sv) = 0;
236 SvOK_off (sv);
237
57 return -1; 238 return 0;
239}
58 240
59typedef SV SV8; /* byte-sv, used for argument-checking */ 241static MGVTBL mmap_vtbl = {
60 242 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}; 243};
77 244
78#define AIO_REQ_KLASS "IO::AIO::REQ" 245static int ecb_cold
79#define AIO_GRP_KLASS "IO::AIO::GRP" 246sysfree_free (pTHX_ SV *sv, MAGIC *mg)
80
81typedef struct aio_cb
82{ 247{
83 struct aio_cb *volatile next; 248 free (mg->mg_ptr);
249 mg->mg_obj = 0; /* just in case */
84 250
85 SV *callback; 251 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;
92 252
93 STRLEN stroffset; 253 if (SvPVX (sv) != mg->mg_ptr)
94 int type; 254 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
95 int int1, int2, int3;
96 int errorno;
97 mode_t mode; /* open */
98 255
99 unsigned char flags; 256 SvCUR_set (sv, 0);
100 unsigned char pri; 257 SvPVX (sv) = 0;
258 SvOK_off (sv);
101 259
102 SV *self; /* the perl counterpart of this request, if any */ 260 return 0;
103 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 261}
104} aio_cb;
105 262
106enum { 263static MGVTBL sysfree_vtbl = {
107 FLAG_CANCELLED = 0x01, /* request was cancelled */ 264 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}; 265};
111 266
112typedef aio_cb *aio_req; 267/*****************************************************************************/
113typedef aio_cb *aio_req_ornot;
114 268
115enum { 269/* helper: set scalar to foreign ptr with custom free */
116 PRI_MIN = -4, 270static void
117 PRI_MAX = 4, 271sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
118
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{ 272{
132 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 273 sv_force_normal (sv);
133 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
134}
135 274
136static thread_t main_tid; 275 /* we store the length in mg_obj, as namlen is I32 :/ */
137static int main_sig; 276 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
138static int block_sig_level; 277 ->mg_obj = (SV *)length;
139 278
140void block_sig () 279 SvUPGRADE (sv, SVt_PV); /* nop... */
141{
142 sigset_t ss;
143 280
144 if (block_sig_level++) 281 if (SvLEN (sv))
282 Safefree (SvPVX (sv));
283
284 SvPVX (sv) = (char *)addr;
285 SvCUR_set (sv, length);
286 SvLEN_set (sv, 0);
287 SvPOK_only (sv);
288}
289
290static void
291sv_clear_foreign (SV *sv)
292{
293 /* todo: iterate over magic and only free ours, but of course */
294 /* the perl5porters will call that (correct) behaviour buggy */
295 sv_unmagic (sv, FOREIGN_MAGIC);
296}
297
298/*****************************************************************************/
299
300/* defines all sorts of constants to 0 unless they are already defined */
301/* also provides const_iv_ and const_niv_ macros for them */
302#include "def0.h"
303
304/*****************************************************************************/
305
306static void
307fiemap (eio_req *req)
308{
309 req->result = -1;
310
311#if HAVE_FIEMAP
312 /* assume some c99 */
313 struct fiemap *fiemap = 0;
314 size_t end_offset;
315 int count = req->int3;
316
317 req->flags |= EIO_FLAG_PTR1_FREE;
318
319 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
320 /* increase in 3.5kb steps */
321 if (count < 0)
322 count = 8;
323
324 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
325 errno = ENOMEM;
326 if (!fiemap)
145 return; 327 return;
146 328
147 if (!main_sig) 329 req->ptr1 = fiemap;
330
331 fiemap->fm_start = req->offs;
332 fiemap->fm_length = req->size;
333 fiemap->fm_flags = req->int2;
334 fiemap->fm_extent_count = count;
335
336 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
148 return; 337 return;
149 338
150 sigemptyset (&ss); 339 if (req->int3 >= 0 /* not autosizing */
151 sigaddset (&ss, main_sig); 340 || !fiemap->fm_mapped_extents /* no more extents */
152 pthread_sigmask (SIG_BLOCK, &ss, 0); 341 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
153} 342 goto done;
154 343
155void unblock_sig () 344 /* else we have to loop -
156{ 345 * it would be tempting (actually I tried that first) to just query the
157 sigset_t ss; 346 * number of extents needed, but linux often feels like not returning all
347 * extents, without telling us it left any out. this complicates
348 * this quite a bit.
349 */
158 350
159 if (--block_sig_level) 351 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
160 return;
161 352
162 if (!main_sig) 353 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 { 354 {
195 closedir (wrk->dirp); 355 /* 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; 356 char scratch[3072];
197 } 357 struct fiemap *incmap = (struct fiemap *)scratch;
198 358
199 if (wrk->dbuf) 359 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
200 { 360 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
201 free (wrk->dbuf); 361 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
202 wrk->dbuf = 0; 362 incmap->fm_flags = fiemap->fm_flags;
203 } 363 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
204}
205 364
206static void worker_free (worker *wrk) 365 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; 366 return;
301 367
302 --q->size; 368 if (!incmap->fm_mapped_extents)
369 goto done;
303 370
304 for (pri = NUM_PRI; pri--; ) 371 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
305 { 372 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
306 aio_req req = q->qs[pri]; 373 errno = ENOMEM;
307
308 if (req) 374 if (!fiemap)
375 return;
376
377 req->ptr1 = fiemap;
378
379 for (count = 0; count < incmap->fm_mapped_extents; ++count)
309 { 380 {
310 if (!(q->qs[pri] = req->next)) 381 struct fiemap_extent *e = incmap->fm_extents + count;
311 q->qe[pri] = 0;
312 382
313 return req; 383 if (e->fe_logical + e->fe_length >= end_offset)
384 goto done;
385
386 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
387
388 if (e->fe_flags & FIEMAP_EXTENT_LAST)
389 goto done;
390
314 } 391 }
315 } 392 }
316 393
317 abort (); 394done:
318} 395 req->result = 0;
319 396
320static int poll_cb (); 397#else
321static int req_invoke (aio_req req); 398 errno = ENOSYS;
399#endif
400}
401
402/*****************************************************************************/
403
404enum {
405 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
406};
407
408typedef eio_req *aio_req;
409typedef eio_req *aio_req_ornot;
410typedef eio_wd aio_wd;
411
412static SV *on_next_submit;
413static int next_pri = EIO_PRI_DEFAULT;
414static int max_outstanding;
415
416static s_epipe respipe;
417
322static void req_free (aio_req req); 418static void req_destroy (aio_req req);
323static void req_cancel (aio_req req); 419static void req_cancel (aio_req req);
324 420
421static void
422want_poll (void)
423{
424 /* write a dummy byte to the pipe so fh becomes ready */
425 s_epipe_signal (&respipe);
426}
427
428static void
429done_poll (void)
430{
431 /* read any signals sent by the worker threads */
432 s_epipe_drain (&respipe);
433}
434
325/* must be called at most once */ 435/* must be called at most once */
326static SV *req_sv (aio_req req, const char *klass) 436static SV *
437req_sv (aio_req req, HV *stash)
327{ 438{
328 if (!req->self) 439 if (!req->self)
329 { 440 {
330 req->self = (SV *)newHV (); 441 req->self = (SV *)newHV ();
331 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 442 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
332 } 443 }
333 444
334 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 445 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
335} 446}
336 447
337static aio_req SvAIO_REQ (SV *sv) 448static SV *
449newSVaio_wd (aio_wd wd)
450{
451 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
452}
453
454static aio_req
455SvAIO_REQ (SV *sv)
338{ 456{
339 MAGIC *mg; 457 MAGIC *mg;
340 458
341 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 459 if (!SvROK (sv)
460 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
461 || (SvSTASH (SvRV (sv)) != aio_grp_stash
462 && SvSTASH (SvRV (sv)) != aio_req_stash
463 && !sv_derived_from (sv, "IO::AIO::REQ")))
342 croak ("object of class " AIO_REQ_KLASS " expected"); 464 croak ("object of class IO::AIO::REQ expected");
343 465
344 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 466 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
345 467
346 return mg ? (aio_req)mg->mg_ptr : 0; 468 return mg ? (aio_req)mg->mg_ptr : 0;
347} 469}
348 470
471static aio_wd
472SvAIO_WD (SV *sv)
473{
474 if (!SvROK (sv)
475 || SvTYPE (SvRV (sv)) != SVt_PVMG
476 || SvSTASH (SvRV (sv)) != aio_wd_stash)
477 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
478
479 return (aio_wd)(long)SvIVX (SvRV (sv));
480}
481
482static SV *
483newmortalFH (int fd, int flags)
484{
485 if (fd < 0)
486 return &PL_sv_undef;
487
488 GV *gv = (GV *)sv_newmortal ();
489 char sym[64];
490 int symlen;
491
492 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
493 gv_init (gv, aio_stash, sym, symlen, 0);
494
495 symlen = snprintf (
496 sym,
497 sizeof (sym),
498 "%s&=%d",
499 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
500 fd
501 );
502
503 return do_open (gv, sym, symlen, 0, 0, 0, 0)
504 ? (SV *)gv : &PL_sv_undef;
505}
506
507static void
349static void aio_grp_feed (aio_req grp) 508aio_grp_feed (aio_req grp)
350{ 509{
351 block_sig (); 510 if (grp->sv2 && SvOK (grp->sv2))
352
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
354 { 511 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 512 dSP;
360 513
361 ENTER; 514 ENTER;
362 SAVETMPS; 515 SAVETMPS;
363 PUSHMARK (SP); 516 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 517 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 518 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 519 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 520 SPAGAIN;
368 FREETMPS; 521 FREETMPS;
369 LEAVE; 522 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 } 523 }
380
381 unblock_sig ();
382} 524}
383 525
384static void aio_grp_dec (aio_req grp) 526static void
527req_submit (eio_req *req)
385{ 528{
386 --grp->size; 529 eio_submit (req);
387 530
388 /* call feeder, if applicable */ 531 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 532 {
394 block_sig (); 533 dSP;
534 SV *cb = sv_2mortal (on_next_submit);
395 535
396 if (!req_invoke (grp)) 536 on_next_submit = 0;
397 {
398 req_free (grp);
399 unblock_sig ();
400 croak (0);
401 }
402 537
403 req_free (grp); 538 PUSHMARK (SP);
404 unblock_sig (); 539 PUTBACK;
540 call_sv (cb, G_DISCARD | G_EVAL);
405 } 541 }
406} 542}
407 543
544static int
408static int req_invoke (aio_req req) 545req_invoke (eio_req *req)
409{ 546{
410 dSP;
411
412 if (req->flags & FLAG_SV1_RO_OFF) 547 if (req->flags & FLAG_SV2_RO_OFF)
413 SvREADONLY_off (req->sv1); 548 SvREADONLY_off (req->sv2);
414 549
415 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 550 if (!EIO_CANCELLED (req) && req->callback)
416 { 551 {
552 dSP;
553 static SV *sv_result_cache; /* caches the result integer SV */
554 SV *sv_result;
555
417 ENTER; 556 ENTER;
418 SAVETMPS; 557 SAVETMPS;
419 PUSHMARK (SP); 558 PUSHMARK (SP);
420 EXTEND (SP, 1); 559 EXTEND (SP, 1);
421 560
561 /* do not recreate the result IV from scratch each time */
562 if (expect_true (sv_result_cache))
563 {
564 sv_result = sv_result_cache; sv_result_cache = 0;
565 SvIV_set (sv_result, req->result);
566 SvIOK_only (sv_result);
567 }
568 else
569 {
570 sv_result = newSViv (req->result);
571 SvREADONLY_on (sv_result);
572 }
573
422 switch (req->type) 574 switch (req->type)
423 { 575 {
576 case EIO_WD_OPEN:
577 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
578 break;
579
424 case REQ_READDIR: 580 case EIO_READDIR:
425 { 581 {
426 SV *rv = &PL_sv_undef; 582 SV *rv = &PL_sv_undef;
427 583
428 if (req->result >= 0) 584 if (req->result >= 0)
429 { 585 {
430 int i; 586 int i;
431 char *buf = req->ptr2; 587 char *names = (char *)req->ptr2;
588 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
432 AV *av = newAV (); 589 AV *av = newAV ();
433 590
434 av_extend (av, req->result - 1); 591 av_extend (av, req->result - 1);
435 592
436 for (i = 0; i < req->result; ++i) 593 for (i = 0; i < req->result; ++i)
437 { 594 {
438 SV *sv = newSVpv (buf, 0); 595 if (req->int1 & EIO_READDIR_DENTS)
596 {
597 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
439 598
599 if (req->int1 & EIO_READDIR_CUSTOM2)
600 {
601 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
602 AV *avent = newAV ();
603
604 av_extend (avent, 2);
605
606 if (!sv_type [ent->type])
607 {
608 sv_type [ent->type] = newSViv (ent->type);
609 SvREADONLY_on (sv_type [ent->type]);
610 }
611
612 av_store (avent, 0, namesv);
613 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
614 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
615
616 av_store (av, i, newRV_noinc ((SV *)avent));
617 }
618 else
440 av_store (av, i, sv); 619 av_store (av, i, namesv);
620
621 ++ent;
622 }
623 else
624 {
625 SV *name = newSVpv (names, 0);
626 av_store (av, i, name);
441 buf += SvCUR (sv) + 1; 627 names += SvCUR (name) + 1;
628 }
442 } 629 }
443 630
444 rv = sv_2mortal (newRV_noinc ((SV *)av)); 631 rv = sv_2mortal (newRV_noinc ((SV *)av));
445 } 632 }
446 633
447 PUSHs (rv); 634 PUSHs (rv);
635
636 if (req->int1 & EIO_READDIR_CUSTOM1)
637 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
448 } 638 }
449 break; 639 break;
450 640
451 case REQ_OPEN: 641 case EIO_OPEN:
642 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
643 break;
644
645 case EIO_STATVFS:
646 case EIO_FSTATVFS:
452 { 647 {
453 /* convert fd to fh */ 648 SV *rv = &PL_sv_undef;
454 SV *fh; 649
650#ifndef _WIN32
651 if (req->result >= 0)
652 {
653 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
654 HV *hv = newHV ();
655 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
656 * chooses to make it a struct.
657 */
658 unsigned long fsid = 0;
659 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
455 660
456 PUSHs (sv_2mortal (newSViv (req->result))); 661 rv = sv_2mortal (newRV_noinc ((SV *)hv));
457 PUTBACK;
458 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
459 SPAGAIN;
460 662
461 fh = POPs; 663 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
462 PUSHMARK (SP); 664 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
665 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
666 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
667 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
668 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
669 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
670 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
671 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
672 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
673 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
674 }
675#endif
676
463 XPUSHs (fh); 677 PUSHs (rv);
464 } 678 }
679
465 break; 680 break;
466 681
467 case REQ_GROUP: 682 case EIO_GROUP:
468 req->int1 = 2; /* mark group as finished */ 683 req->int1 = 2; /* mark group as finished */
469 684
470 if (req->sv1) 685 if (req->sv1)
471 { 686 {
472 int i; 687 int i;
… …
476 for (i = 0; i <= AvFILL (av); ++i) 691 for (i = 0; i <= AvFILL (av); ++i)
477 PUSHs (*av_fetch (av, i, 0)); 692 PUSHs (*av_fetch (av, i, 0));
478 } 693 }
479 break; 694 break;
480 695
481 case REQ_NOP: 696 case EIO_NOP:
482 case REQ_BUSY: 697 case EIO_BUSY:
483 break; 698 break;
484 699
485 case REQ_READLINK: 700 case EIO_READLINK:
701 case EIO_REALPATH:
486 if (req->result > 0) 702 if (req->result > 0)
703 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
704 break;
705
706 case EIO_STAT:
707 case EIO_LSTAT:
708 case EIO_FSTAT:
709 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
710
711 if (!(PL_laststatval = req->result))
712 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
713 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
714
715 PUSHs (sv_result);
716 break;
717
718 case EIO_SEEK:
719 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
720 break;
721
722 case EIO_READ:
723 {
724 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
725 *SvEND (req->sv2) = 0;
726 SvPOK_only (req->sv2);
727 SvSETMAGIC (req->sv2);
728 PUSHs (sv_result);
729 }
730 break;
731
732 case EIO_SLURP:
733 {
734 if (req->result >= 0)
735 {
736 /* if length was originally not known, we steal the malloc'ed memory */
737 if (req->flags & EIO_FLAG_PTR2_FREE)
738 {
739 req->flags &= ~EIO_FLAG_PTR2_FREE;
740 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
741 }
742 else
743 {
744 SvCUR_set (req->sv2, req->result);
745 *SvEND (req->sv2) = 0;
746 SvPOK_only (req->sv2);
747 }
748
749 SvSETMAGIC (req->sv2);
750 }
751
752 PUSHs (sv_result);
753 }
754 break;
755
756 case EIO_CUSTOM:
757 if (req->feed == fiemap)
487 { 758 {
488 SvCUR_set (req->sv2, req->result); 759#if HAVE_FIEMAP
489 *SvEND (req->sv2) = 0;
490 PUSHs (req->sv2); 760 if (!req->result)
761 {
762 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
763
764 if (fiemap->fm_extent_count)
765 {
766 AV *av = newAV ();
767 int i;
768
769 while (fiemap->fm_mapped_extents)
770 {
771 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
772 AV *ext_av = newAV ();
773
774 av_store (ext_av, 3, newSVuv (extent->fe_flags));
775 av_store (ext_av, 2, newSVval64 (extent->fe_length));
776 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
777 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
778
779 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
780 }
781
782 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
783 }
784 else
785 {
786 SvIV_set (sv_result, fiemap->fm_mapped_extents);
787 PUSHs (sv_result);
788 }
789 }
790#endif
491 } 791 }
792 else
793 PUSHs (sv_result);
492 break; 794 break;
493 795
494 case REQ_STAT: 796 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
495 case REQ_LSTAT: 797 if (req->result > 0)
496 case REQ_FSTAT: 798 SvIV_set (sv_result, 0);
497 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 799 /* FALLTHROUGH */
498 PL_laststatval = req->result;
499 PL_statcache = *(Stat_t *)(req->ptr2);
500 PUSHs (sv_2mortal (newSViv (req->result)));
501 break;
502
503 case REQ_READ:
504 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
505 *SvEND (req->sv2) = 0;
506 PUSHs (sv_2mortal (newSViv (req->result)));
507 break;
508 800
509 default: 801 default:
510 PUSHs (sv_2mortal (newSViv (req->result))); 802 PUSHs (sv_result);
511 break; 803 break;
512 } 804 }
513 805
514 errno = req->errorno; 806 errno = req->errorno;
515 807
516 PUTBACK; 808 PUTBACK;
517 call_sv (req->callback, G_VOID | G_EVAL); 809 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
518 SPAGAIN; 810 SPAGAIN;
811
812 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
813 SvREFCNT_dec (sv_result);
814 else
815 sv_result_cache = sv_result;
519 816
520 FREETMPS; 817 FREETMPS;
521 LEAVE; 818 LEAVE;
819
820 PUTBACK;
522 } 821 }
523 822
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); 823 return !!SvTRUE (ERRSV);
539} 824}
540 825
541static void req_free (aio_req req) 826static void
827req_destroy (aio_req req)
542{ 828{
543 if (req->self) 829 if (req->self)
544 { 830 {
545 sv_unmagic (req->self, PERL_MAGIC_ext); 831 sv_unmagic (req->self, PERL_MAGIC_ext);
546 SvREFCNT_dec (req->self); 832 SvREFCNT_dec (req->self);
547 } 833 }
548 834
549 SvREFCNT_dec (req->sv1); 835 SvREFCNT_dec (req->sv1);
550 SvREFCNT_dec (req->sv2); 836 SvREFCNT_dec (req->sv2);
837 SvREFCNT_dec (req->sv3);
838 SvREFCNT_dec (req->sv4);
551 SvREFCNT_dec (req->callback); 839 SvREFCNT_dec (req->callback);
552 840
553 if (req->flags & FLAG_PTR2_FREE)
554 free (req->ptr2);
555
556 Safefree (req); 841 free (req);
557} 842}
558 843
844static void
559static void req_cancel_subs (aio_req grp) 845req_cancel_subs (aio_req grp)
560{ 846{
561 aio_req sub;
562
563 if (grp->type != REQ_GROUP) 847 if (grp->type != EIO_GROUP)
564 return; 848 return;
565 849
566 SvREFCNT_dec (grp->sv2); 850 SvREFCNT_dec (grp->sv2);
567 grp->sv2 = 0; 851 grp->sv2 = 0;
568 852
569 for (sub = grp->grp_first; sub; sub = sub->grp_next) 853 eio_grp_cancel (grp);
570 req_cancel (sub);
571} 854}
572 855
573static void req_cancel (aio_req req) 856static void ecb_cold
857create_respipe (void)
574{ 858{
575 req->flags |= FLAG_CANCELLED; 859 if (s_epipe_renew (&respipe))
576 860 croak ("IO::AIO: unable to initialize result pipe");
577 req_cancel_subs (req);
578} 861}
579 862
580static void *aio_proc(void *arg); 863static void
581 864poll_wait (void)
582static void start_thread (void)
583{ 865{
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) 866 while (eio_nreqs ())
680 { 867 {
681 int size; 868 int size;
682 if (WORDACCESS_UNSAFE) LOCK (reslock); 869
870 X_LOCK (EIO_POOL->reslock);
683 size = res_queue.size; 871 size = EIO_POOL->res_queue.size;
684 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 872 X_UNLOCK (EIO_POOL->reslock);
685 873
686 if (size) 874 if (size)
687 return; 875 return;
688 876
689 maybe_start_thread (); 877 etp_maybe_start_thread (EIO_POOL);
690 878
691 FD_ZERO(&rfd); 879 s_epipe_wait (&respipe);
692 FD_SET(respipe [0], &rfd);
693
694 select (respipe [0] + 1, &rfd, 0, 0, 0);
695 } 880 }
696} 881}
697 882
698static int poll_cb () 883static int
884poll_cb (void)
699{ 885{
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 (;;) 886 for (;;)
713 { 887 {
714 for (;;) 888 int res = eio_poll ();
889
890 if (res > 0)
891 croak (0);
892
893 if (!max_outstanding || max_outstanding > eio_nreqs ())
894 return res;
895
896 poll_wait ();
897 }
898}
899
900static void ecb_cold
901reinit (void)
902{
903 create_respipe ();
904
905 if (eio_init (want_poll, done_poll) < 0)
906 croak ("IO::AIO: unable to initialise eio library");
907}
908
909/*****************************************************************************/
910
911static SV *
912get_cb (SV *cb_sv)
913{
914 SvGETMAGIC (cb_sv);
915 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
916}
917
918static aio_req ecb_noinline
919dreq (SV *callback)
920{
921 SV *cb_cv;
922 aio_req req;
923 int req_pri = next_pri;
924 next_pri = EIO_PRI_DEFAULT;
925
926 cb_cv = get_cb (callback);
927
928 req = calloc (sizeof (*req), 1);
929 if (!req)
930 croak ("out of memory during eio_req allocation");
931
932 req->callback = SvREFCNT_inc (cb_cv);
933 req->pri = req_pri;
934
935 return req;
936}
937
938#define dREQ \
939 aio_req req = dreq (callback); \
940
941#define REQ_SEND \
942 PUTBACK; \
943 req_submit (req); \
944 SPAGAIN; \
945 \
946 if (GIMME_V != G_VOID) \
947 XPUSHs (req_sv (req, aio_req_stash));
948
949ecb_inline void
950req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
951{
952 if (expect_false (SvROK (path)))
953 {
954 SV *rv = SvRV (path);
955 SV *wdob;
956
957 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
715 { 958 {
716 maybe_start_thread (); 959 path = AvARRAY (rv)[1];
960 wdob = AvARRAY (rv)[0];
717 961
718 LOCK (reslock); 962 if (SvOK (wdob))
719 req = reqq_shift (&res_queue);
720
721 if (req)
722 { 963 {
723 --npending; 964 *wd = SvAIO_WD (wdob);
724 965 *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 } 966 }
746 else 967 else
747 { 968 *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 } 969 }
970 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
971 {
972 *wd = (aio_wd)(long)SvIVX (rv);
973 *wdsv = SvREFCNT_inc_NN (rv);
974 *ptr = ".";
975 return; /* path set to "." */
976 }
977 else
978 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
979 }
771 980
772 if (nreqs <= max_outstanding) 981 *pathsv = newSVsv (path);
982 *ptr = SvPVbyte_nolen (*pathsv);
983}
984
985static void ecb_noinline
986req_set_path1 (aio_req req, SV *path)
987{
988 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
989}
990
991static void ecb_noinline
992req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
993{
994 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
995
996 switch (SvTYPE (rv))
997 {
998 case SVt_PVIO:
999 case SVt_PVLV:
1000 case SVt_PVGV:
1001 req->type = type_fh;
1002 req->sv1 = newSVsv (fh_or_path);
1003 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
773 break; 1004 break;
774 1005
775 poll_wait (); 1006 default:
776 1007 req->type = type_path;
777 ++maxreqs; 1008 req_set_path1 (req, fh_or_path);
1009 break;
778 } 1010 }
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} 1011}
795 1012
796/*****************************************************************************/ 1013/*****************************************************************************/
797/* work around various missing functions */
798 1014
799#if !HAVE_PREADWRITE 1015static void
800# define pread aio_pread 1016ts_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{ 1017{
812 ssize_t res; 1018 ts->tv_sec = value;
813 off_t ooffset; 1019 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} 1020}
824 1021
825static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1022static NV
1023ts_get (const struct timespec *ts)
826{ 1024{
827 ssize_t res; 1025 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}
839#endif
840
841#ifndef HAVE_FUTIMES
842
843# define utimes(path,times) aio_utimes (path, times)
844# define futimes(fd,times) aio_futimes (fd, times)
845
846int aio_utimes (const char *filename, const struct timeval times[2])
847{
848 if (times)
849 {
850 struct utimbuf buf;
851
852 buf.actime = times[0].tv_sec;
853 buf.modtime = times[1].tv_sec;
854
855 return utime (filename, &buf);
856 }
857 else
858 return utime (filename, 0);
859}
860
861int aio_futimes (int fd, const struct timeval tv[2])
862{
863 errno = ENOSYS;
864 return -1;
865}
866
867#endif
868
869#if !HAVE_FDATASYNC
870# define fdatasync fsync
871#endif
872
873#if !HAVE_READAHEAD
874# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
875
876static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
877{
878 dBUF;
879
880 while (count > 0)
881 {
882 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
883
884 pread (fd, aio_buf, len, offset);
885 offset += len;
886 count -= len;
887 }
888
889 errno = 0;
890}
891
892#endif
893
894#if !HAVE_READDIR_R
895# define readdir_r aio_readdir_r
896
897static mutex_t readdirlock = MUTEX_INIT;
898
899static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
900{
901 struct dirent *e;
902 int errorno;
903
904 LOCK (readdirlock);
905
906 e = readdir (dirp);
907 errorno = errno;
908
909 if (e)
910 {
911 *res = ent;
912 strcpy (ent->d_name, e->d_name);
913 }
914 else
915 *res = 0;
916
917 UNLOCK (readdirlock);
918
919 errno = errorno;
920 return e ? 0 : -1;
921}
922#endif
923
924/* sendfile always needs emulation */
925static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
926{
927 ssize_t res;
928
929 if (!count)
930 return 0;
931
932#if HAVE_SENDFILE
933# if __linux
934 res = sendfile (ofd, ifd, &offset, count);
935
936# elif __freebsd
937 /*
938 * Of course, the freebsd sendfile is a dire hack with no thoughts
939 * wasted on making it similar to other I/O functions.
940 */
941 {
942 off_t sbytes;
943 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
944
945 if (res < 0 && sbytes)
946 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
947 res = sbytes;
948 }
949
950# elif __hpux
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}
1016
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} 1026}
1078 1027
1079/*****************************************************************************/ 1028/*****************************************************************************/
1080 1029
1081static void *aio_proc (void *thr_arg) 1030XS(boot_IO__AIO) ecb_cold;
1082{
1083 aio_req req;
1084 struct timespec ts;
1085 worker *self = (worker *)thr_arg;
1086 1031
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 1032MODULE = IO::AIO PACKAGE = IO::AIO
1326 1033
1327PROTOTYPES: ENABLE 1034PROTOTYPES: ENABLE
1328 1035
1329BOOT: 1036BOOT:
1330{ 1037{
1038 static const struct {
1039 const char *name;
1040 IV iv;
1041 } *civ, const_iv[] = {
1042# define const_niv(name, value) { # name, (IV) value },
1043# define const_iv(name) { # name, (IV) name },
1044# define const_eio(name) { # name, (IV) EIO_ ## name },
1045
1046 /* you have to re-run ./gendef0 after adding/removing any constants here */
1047 /* the first block can be undef if missing */
1048 const_iv (ENOSYS)
1049 const_iv (EXDEV)
1050 const_iv (EBADR)
1051
1052 /* for lseek */
1053 const_iv (SEEK_DATA)
1054 const_iv (SEEK_HOLE)
1055
1056 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1057 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1058 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1059 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1060 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1061 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1062
1063 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1064 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1065 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1066 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1067 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1068
1069 /* the second block will be 0 when missing */
1070 const_iv (O_ACCMODE)
1071
1072 const_iv (O_RDONLY)
1073 const_iv (O_WRONLY)
1074 const_iv (O_RDWR)
1075 const_iv (O_CREAT)
1076 const_iv (O_TRUNC)
1077 const_iv (O_EXCL)
1078 const_iv (O_APPEND)
1079
1080 const_iv (O_ASYNC)
1081 const_iv (O_DIRECT)
1082 const_iv (O_NOATIME)
1083
1084 const_iv (O_CLOEXEC)
1085 const_iv (O_NOCTTY)
1086 const_iv (O_NOFOLLOW)
1087 const_iv (O_NONBLOCK)
1088 const_iv (O_EXEC)
1089 const_iv (O_SEARCH)
1090 const_iv (O_DIRECTORY)
1091 const_iv (O_DSYNC)
1092 const_iv (O_RSYNC)
1093 const_iv (O_SYNC)
1094 const_iv (O_PATH)
1095 const_iv (O_TMPFILE)
1096 const_iv (O_TTY_INIT)
1097
1098 const_iv (S_IFIFO)
1099 const_iv (S_IFCHR)
1100 const_iv (S_IFBLK)
1101 const_iv (S_IFLNK)
1102 const_iv (S_IFREG)
1103 const_iv (S_IFDIR)
1104 const_iv (S_IFWHT)
1105 const_iv (S_IFSOCK)
1106 const_iv (S_IFMT)
1107
1108 const_iv (ST_RDONLY)
1109 const_iv (ST_NOSUID)
1110 const_iv (ST_NODEV)
1111 const_iv (ST_NOEXEC)
1112 const_iv (ST_SYNCHRONOUS)
1113 const_iv (ST_MANDLOCK)
1114 const_iv (ST_WRITE)
1115 const_iv (ST_APPEND)
1116 const_iv (ST_IMMUTABLE)
1117 const_iv (ST_NOATIME)
1118 const_iv (ST_NODIRATIME)
1119 const_iv (ST_RELATIME)
1120
1121 const_iv (PROT_NONE)
1122 const_iv (PROT_EXEC)
1123 const_iv (PROT_READ)
1124 const_iv (PROT_WRITE)
1125
1126 const_iv (MAP_PRIVATE)
1127 const_iv (MAP_SHARED)
1128 const_iv (MAP_FIXED)
1129 const_iv (MAP_ANONYMOUS)
1130
1131 /* linuxish */
1132 const_iv (MAP_LOCKED)
1133 const_iv (MAP_NORESERVE)
1134 const_iv (MAP_POPULATE)
1135 const_iv (MAP_NONBLOCK)
1136 const_iv (MAP_GROWSDOWN)
1137 const_iv (MAP_32BIT)
1138 const_iv (MAP_HUGETLB)
1139 const_iv (MAP_STACK)
1140
1141 const_iv (MREMAP_MAYMOVE)
1142 const_iv (MREMAP_FIXED)
1143
1144 const_iv (F_DUPFD_CLOEXEC)
1145
1146 const_iv (MSG_CMSG_CLOEXEC)
1147 const_iv (SOCK_CLOEXEC)
1148
1149 const_iv (F_OFD_GETLK)
1150 const_iv (F_OFD_SETLK)
1151 const_iv (F_OFD_GETLKW)
1152
1153 const_iv (FIFREEZE)
1154 const_iv (FITHAW)
1155 const_iv (FITRIM)
1156 const_iv (FICLONE)
1157 const_iv (FICLONERANGE)
1158 const_iv (FIDEDUPERANGE)
1159
1160 const_iv (FS_IOC_GETFLAGS)
1161 const_iv (FS_IOC_SETFLAGS)
1162 const_iv (FS_IOC_GETVERSION)
1163 const_iv (FS_IOC_SETVERSION)
1164 const_iv (FS_IOC_FIEMAP)
1165 const_iv (FS_IOC_FSGETXATTR)
1166 const_iv (FS_IOC_FSSETXATTR)
1167 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1168 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1169 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1170
1171 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1172
1173 const_iv (FS_SECRM_FL)
1174 const_iv (FS_UNRM_FL)
1175 const_iv (FS_COMPR_FL)
1176 const_iv (FS_SYNC_FL)
1177 const_iv (FS_IMMUTABLE_FL)
1178 const_iv (FS_APPEND_FL)
1179 const_iv (FS_NODUMP_FL)
1180 const_iv (FS_NOATIME_FL)
1181 const_iv (FS_DIRTY_FL)
1182 const_iv (FS_COMPRBLK_FL)
1183 const_iv (FS_NOCOMP_FL)
1184 const_iv (FS_ENCRYPT_FL)
1185 const_iv (FS_BTREE_FL)
1186 const_iv (FS_INDEX_FL)
1187 const_iv (FS_JOURNAL_DATA_FL)
1188 const_iv (FS_NOTAIL_FL)
1189 const_iv (FS_DIRSYNC_FL)
1190 const_iv (FS_TOPDIR_FL)
1191 const_iv (FS_FL_USER_MODIFIABLE)
1192
1193 const_iv (FS_XFLAG_REALTIME)
1194 const_iv (FS_XFLAG_PREALLOC)
1195 const_iv (FS_XFLAG_IMMUTABLE)
1196 const_iv (FS_XFLAG_APPEND)
1197 const_iv (FS_XFLAG_SYNC)
1198 const_iv (FS_XFLAG_NOATIME)
1199 const_iv (FS_XFLAG_NODUMP)
1200 const_iv (FS_XFLAG_RTINHERIT)
1201 const_iv (FS_XFLAG_PROJINHERIT)
1202 const_iv (FS_XFLAG_NOSYMLINKS)
1203 const_iv (FS_XFLAG_EXTSIZE)
1204 const_iv (FS_XFLAG_EXTSZINHERIT)
1205 const_iv (FS_XFLAG_NODEFRAG)
1206 const_iv (FS_XFLAG_FILESTREAM)
1207 const_iv (FS_XFLAG_DAX)
1208 const_iv (FS_XFLAG_HASATTR)
1209
1210 const_iv (FIEMAP_FLAG_SYNC)
1211 const_iv (FIEMAP_FLAG_XATTR)
1212 const_iv (FIEMAP_FLAGS_COMPAT)
1213 const_iv (FIEMAP_EXTENT_LAST)
1214 const_iv (FIEMAP_EXTENT_UNKNOWN)
1215 const_iv (FIEMAP_EXTENT_DELALLOC)
1216 const_iv (FIEMAP_EXTENT_ENCODED)
1217 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1218 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1219 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1220 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1221 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1222 const_iv (FIEMAP_EXTENT_MERGED)
1223 const_iv (FIEMAP_EXTENT_SHARED)
1224
1225 const_iv (SPLICE_F_MOVE)
1226 const_iv (SPLICE_F_NONBLOCK)
1227 const_iv (SPLICE_F_MORE)
1228 const_iv (SPLICE_F_GIFT)
1229
1230 const_iv (EFD_CLOEXEC)
1231 const_iv (EFD_NONBLOCK)
1232 const_iv (EFD_SEMAPHORE)
1233
1234 const_iv (CLOCK_REALTIME)
1235 const_iv (CLOCK_MONOTONIC)
1236 const_iv (CLOCK_BOOTTIME)
1237 const_iv (CLOCK_REALTIME_ALARM)
1238 const_iv (CLOCK_BOOTTIME_ALARM)
1239
1240 const_iv (TFD_NONBLOCK)
1241 const_iv (TFD_CLOEXEC)
1242
1243 const_iv (TFD_TIMER_ABSTIME)
1244 const_iv (TFD_TIMER_CANCEL_ON_SET)
1245
1246 /* these are libeio constants, and are independent of gendef0 */
1247 const_eio (SEEK_SET)
1248 const_eio (SEEK_CUR)
1249 const_eio (SEEK_END)
1250
1251 const_eio (MCL_FUTURE)
1252 const_eio (MCL_CURRENT)
1253
1254 const_eio (MS_ASYNC)
1255 const_eio (MS_INVALIDATE)
1256 const_eio (MS_SYNC)
1257
1258 const_eio (MT_MODIFY)
1259
1260 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1261 const_eio (SYNC_FILE_RANGE_WRITE)
1262 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1263
1264 const_eio (FALLOC_FL_KEEP_SIZE)
1265 const_eio (FALLOC_FL_PUNCH_HOLE)
1266 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1267 const_eio (FALLOC_FL_ZERO_RANGE)
1268 const_eio (FALLOC_FL_INSERT_RANGE)
1269 const_eio (FALLOC_FL_UNSHARE_RANGE)
1270
1271 const_eio (RENAME_NOREPLACE)
1272 const_eio (RENAME_EXCHANGE)
1273 const_eio (RENAME_WHITEOUT)
1274
1275 const_eio (READDIR_DENTS)
1276 const_eio (READDIR_DIRS_FIRST)
1277 const_eio (READDIR_STAT_ORDER)
1278 const_eio (READDIR_FOUND_UNKNOWN)
1279
1280 const_eio (DT_UNKNOWN)
1281 const_eio (DT_FIFO)
1282 const_eio (DT_CHR)
1283 const_eio (DT_DIR)
1284 const_eio (DT_BLK)
1285 const_eio (DT_REG)
1286 const_eio (DT_LNK)
1287 const_eio (DT_SOCK)
1288 const_eio (DT_WHT)
1289 };
1290
1331 HV *stash = gv_stashpv ("IO::AIO", 1); 1291 aio_stash = gv_stashpv ("IO::AIO" , 1);
1292 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1293 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1294 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1332 1295
1333 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1296 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1334 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1297 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
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 1298
1341 create_pipe (); 1299 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1342 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1343}
1344 1300
1301 reinit ();
1302}
1303
1345void 1304void
1305reinit ()
1306 PROTOTYPE:
1307
1308void
1346max_poll_reqs (int nreqs) 1309max_poll_reqs (unsigned int nreqs)
1347 PROTOTYPE: $ 1310 PROTOTYPE: $
1348 CODE: 1311 CODE:
1349 max_poll_reqs = nreqs; 1312 eio_set_max_poll_reqs (nreqs);
1350 1313
1351void 1314void
1352max_poll_time (double nseconds) 1315max_poll_time (double nseconds)
1353 PROTOTYPE: $ 1316 PROTOTYPE: $
1354 CODE: 1317 CODE:
1355 max_poll_time = nseconds * AIO_TICKS; 1318 eio_set_max_poll_time (nseconds);
1356 1319
1357void 1320void
1358min_parallel (int nthreads) 1321min_parallel (unsigned int nthreads)
1359 PROTOTYPE: $
1360
1361void
1362max_parallel (int nthreads)
1363 PROTOTYPE: $
1364
1365void
1366max_idle (int nthreads)
1367 PROTOTYPE: $ 1322 PROTOTYPE: $
1368 CODE: 1323 CODE:
1369 set_max_idle (nthreads); 1324 eio_set_min_parallel (nthreads);
1370 1325
1371int 1326void
1372max_outstanding (int maxreqs) 1327max_parallel (unsigned int nthreads)
1373 PROTOTYPE: $ 1328 PROTOTYPE: $
1374 CODE: 1329 CODE:
1375 RETVAL = max_outstanding; 1330 eio_set_max_parallel (nthreads);
1331
1332void
1333max_idle (unsigned int nthreads)
1334 PROTOTYPE: $
1335 CODE:
1336 eio_set_max_idle (nthreads);
1337
1338void
1339idle_timeout (unsigned int seconds)
1340 PROTOTYPE: $
1341 CODE:
1342 eio_set_idle_timeout (seconds);
1343
1344void
1345max_outstanding (unsigned int maxreqs)
1346 PROTOTYPE: $
1347 CODE:
1376 max_outstanding = maxreqs; 1348 max_outstanding = maxreqs;
1377 OUTPUT:
1378 RETVAL
1379 1349
1380void 1350void
1381aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1351aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1382 PROTOTYPE: $$$;$
1383 PPCODE: 1352 PPCODE:
1384{ 1353{
1385 dREQ; 1354 dREQ;
1386 1355
1356 req->type = EIO_WD_OPEN;
1357 req_set_path1 (req, pathname);
1358
1359 REQ_SEND;
1360}
1361
1362void
1363aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1364 PPCODE:
1365{
1366 dREQ;
1367
1387 req->type = REQ_OPEN; 1368 req->type = EIO_OPEN;
1388 req->sv1 = newSVsv (pathname); 1369 req_set_path1 (req, pathname);
1389 req->ptr1 = SvPVbyte_nolen (req->sv1);
1390 req->int1 = flags; 1370 req->int1 = flags;
1391 req->mode = mode; 1371 req->int2 = mode;
1392 1372
1393 REQ_SEND; 1373 REQ_SEND;
1394} 1374}
1395 1375
1396void 1376void
1397aio_close (SV *fh, SV *callback=&PL_sv_undef) 1377aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1398 PROTOTYPE: $;$
1399 ALIAS: 1378 ALIAS:
1400 aio_close = REQ_CLOSE
1401 aio_fsync = REQ_FSYNC 1379 aio_fsync = EIO_FSYNC
1402 aio_fdatasync = REQ_FDATASYNC 1380 aio_fdatasync = EIO_FDATASYNC
1381 aio_syncfs = EIO_SYNCFS
1403 PPCODE: 1382 PPCODE:
1404{ 1383{
1384 int fd = s_fileno_croak (fh, 0);
1405 dREQ; 1385 dREQ;
1406 1386
1407 req->type = ix; 1387 req->type = ix;
1408 req->sv1 = newSVsv (fh); 1388 req->sv1 = newSVsv (fh);
1409 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1389 req->int1 = fd;
1410 1390
1411 REQ_SEND (req); 1391 REQ_SEND;
1412} 1392}
1413 1393
1414void 1394void
1395aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1396 PPCODE:
1397{
1398 int fd = s_fileno_croak (fh, 0);
1399 dREQ;
1400
1401 req->type = EIO_SYNC_FILE_RANGE;
1402 req->sv1 = newSVsv (fh);
1403 req->int1 = fd;
1404 req->offs = offset;
1405 req->size = nbytes;
1406 req->int2 = flags;
1407
1408 REQ_SEND;
1409}
1410
1411void
1412aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1413 PPCODE:
1414{
1415 int fd = s_fileno_croak (fh, 0);
1416 dREQ;
1417
1418 req->type = EIO_FALLOCATE;
1419 req->sv1 = newSVsv (fh);
1420 req->int1 = fd;
1421 req->int2 = mode;
1422 req->offs = offset;
1423 req->size = len;
1424
1425 REQ_SEND;
1426}
1427
1428void
1429aio_close (SV *fh, SV *callback = &PL_sv_undef)
1430 PPCODE:
1431{
1432 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1433 int fd = s_fileno_croak (fh, 0);
1434 dREQ;
1435
1436 if (expect_false (close_fd < 0))
1437 {
1438 int pipefd [2];
1439
1440 if (
1441#ifdef _WIN32
1442 _pipe (pipefd, 1, _O_BINARY) < 0
1443#else
1444 pipe (pipefd) < 0
1445 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1446#endif
1447 || close (pipefd [1]) < 0
1448 )
1449 abort (); /*D*/
1450
1451 close_fd = pipefd [0];
1452 }
1453
1454 req->type = EIO_DUP2;
1455 req->int1 = close_fd;
1456 req->sv2 = newSVsv (fh);
1457 req->int2 = fd;
1458
1459 REQ_SEND;
1460}
1461
1462void
1463aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1464 PPCODE:
1465{
1466 int fd = s_fileno_croak (fh, 0);
1467 dREQ;
1468
1469 req->type = EIO_SEEK;
1470 req->sv1 = newSVsv (fh);
1471 req->int1 = fd;
1472 req->offs = SvVAL64 (offset);
1473 req->int2 = whence;
1474
1475 REQ_SEND;
1476}
1477
1478void
1415aio_read (SV *fh, UV offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1416 ALIAS: 1480 ALIAS:
1417 aio_read = REQ_READ 1481 aio_read = EIO_READ
1418 aio_write = REQ_WRITE 1482 aio_write = EIO_WRITE
1419 PROTOTYPE: $$$$$;$
1420 PPCODE: 1483 PPCODE:
1421{ 1484{
1422 STRLEN svlen; 1485 STRLEN svlen;
1486 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1423 char *svptr = SvPVbyte (data, svlen); 1487 char *svptr = SvPVbyte (data, svlen);
1424 1488 UV len = SvUV (length);
1425 SvUPGRADE (data, SVt_PV);
1426 SvPOK_on (data);
1427 1489
1428 if (dataoffset < 0) 1490 if (dataoffset < 0)
1429 dataoffset += svlen; 1491 dataoffset += svlen;
1430 1492
1431 if (dataoffset < 0 || dataoffset > svlen) 1493 if (dataoffset < 0 || dataoffset > svlen)
1432 croak ("data offset outside of string"); 1494 croak ("dataoffset outside of data scalar");
1433 1495
1434 if (ix == REQ_WRITE) 1496 if (ix == EIO_WRITE)
1435 { 1497 {
1436 /* write: check length and adjust. */ 1498 /* write: check length and adjust. */
1437 if (length < 0 || length + dataoffset > svlen) 1499 if (!SvOK (length) || len + dataoffset > svlen)
1438 length = svlen - dataoffset; 1500 len = svlen - dataoffset;
1439 } 1501 }
1440 else 1502 else
1441 { 1503 {
1442 /* read: grow scalar as necessary */ 1504 /* read: check type and grow scalar as necessary */
1505 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1443 svptr = SvGROW (data, length + dataoffset + 1); 1506 svptr = sv_grow (data, len + dataoffset + 1);
1507 else if (SvCUR (data) < len + dataoffset)
1508 croak ("length + dataoffset outside of scalar, and cannot grow");
1444 } 1509 }
1445
1446 if (length < 0)
1447 croak ("length must not be negative");
1448 1510
1449 { 1511 {
1450 dREQ; 1512 dREQ;
1451 1513
1452 req->type = ix; 1514 req->type = ix;
1453 req->sv1 = newSVsv (fh); 1515 req->sv1 = newSVsv (fh);
1454 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1516 req->int1 = fd;
1455 : IoOFP (sv_2io (fh))); 1517 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1518 req->size = len;
1519 req->sv2 = SvREFCNT_inc (data);
1520 req->ptr2 = (char *)svptr + dataoffset;
1521 req->stroffset = dataoffset;
1522
1523 if (!SvREADONLY (data))
1524 {
1525 SvREADONLY_on (data);
1526 req->flags |= FLAG_SV2_RO_OFF;
1527 }
1528
1529 REQ_SEND;
1530 }
1531}
1532
1533void
1534aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1535 ALIAS:
1536 aio_ioctl = EIO_IOCTL
1537 aio_fcntl = EIO_FCNTL
1538 PPCODE:
1539{
1540 int fd = s_fileno_croak (fh, 0);
1541 char *svptr;
1542
1543 if (SvPOK (arg) || !SvNIOK (arg))
1544 {
1545 STRLEN svlen;
1546 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1547#ifdef IOCPARM_LEN
1548 STRLEN need = IOCPARM_LEN (request);
1549#else
1550 STRLEN need = 256;
1551#endif
1552
1553 if (svlen < need)
1554 svptr = SvGROW (arg, need);
1555 }
1556 else
1557 svptr = (char *)SvIV (arg);
1558
1559 {
1560 dREQ;
1561
1562 req->type = ix;
1563 req->sv1 = newSVsv (fh);
1564 req->int1 = fd;
1565 req->int2 = (long)request;
1566 req->sv2 = SvREFCNT_inc (arg);
1567 req->ptr2 = svptr;
1568
1569 REQ_SEND;
1570 }
1571}
1572
1573void
1574aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1575 ALIAS:
1576 aio_readlink = EIO_READLINK
1577 aio_realpath = EIO_REALPATH
1578 PPCODE:
1579{
1580 dREQ;
1581
1582 req->type = ix;
1583 req_set_path1 (req, pathname);
1584
1585 REQ_SEND;
1586}
1587
1588void
1589aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1590 PPCODE:
1591{
1592 int ifd = s_fileno_croak (in_fh , 0);
1593 int ofd = s_fileno_croak (out_fh, 1);
1594 dREQ;
1595
1596 req->type = EIO_SENDFILE;
1597 req->sv1 = newSVsv (out_fh);
1598 req->int1 = ofd;
1599 req->sv2 = newSVsv (in_fh);
1600 req->int2 = ifd;
1601 req->offs = in_offset;
1602 req->size = length;
1603
1604 REQ_SEND;
1605}
1606
1607void
1608aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 int fd = s_fileno_croak (fh, 0);
1612 dREQ;
1613
1614 req->type = EIO_READAHEAD;
1615 req->sv1 = newSVsv (fh);
1616 req->int1 = fd;
1617 req->offs = offset;
1618 req->size = length;
1619
1620 REQ_SEND;
1621}
1622
1623void
1624aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1625 ALIAS:
1626 aio_stat = EIO_STAT
1627 aio_lstat = EIO_LSTAT
1628 aio_statvfs = EIO_STATVFS
1629 PPCODE:
1630{
1631 dREQ;
1632
1633 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1634
1635 REQ_SEND;
1636}
1637
1638void
1639st_xtime ()
1640 ALIAS:
1641 st_atime = 1
1642 st_mtime = 2
1643 st_ctime = 4
1644 st_xtime = 7
1645 PPCODE:
1646 EXTEND (SP, 3);
1647 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1648 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1649 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1650
1651void
1652st_xtimensec ()
1653 ALIAS:
1654 st_atimensec = 1
1655 st_mtimensec = 2
1656 st_ctimensec = 4
1657 st_xtimensec = 7
1658 PPCODE:
1659 EXTEND (SP, 3);
1660 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1661 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1662 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1663
1664UV
1665major (UV dev)
1666 ALIAS:
1667 minor = 1
1668 CODE:
1669 RETVAL = ix ? minor (dev) : major (dev);
1670 OUTPUT:
1671 RETVAL
1672
1673UV
1674makedev (UV maj, UV min)
1675 CODE:
1676 RETVAL = makedev (maj, min);
1677 OUTPUT:
1678 RETVAL
1679
1680void
1681aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1682 PPCODE:
1683{
1684 dREQ;
1685
1686 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1687 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1688 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1689
1690 REQ_SEND;
1691}
1692
1693void
1694aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1695 PPCODE:
1696{
1697 dREQ;
1698
1699 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1700 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1701
1702 REQ_SEND;
1703}
1704
1705void
1706aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1707 PPCODE:
1708{
1709 dREQ;
1710
1711 req->int2 = mode;
1712 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1713
1714 REQ_SEND;
1715}
1716
1717void
1718aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1719 PPCODE:
1720{
1721 dREQ;
1722
1723 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1724 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1725 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1726
1727 REQ_SEND;
1728}
1729
1730void
1731aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1732 PPCODE:
1733{
1734 dREQ;
1735
1736 req->type = EIO_READDIR;
1737 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1738
1739 if (flags & EIO_READDIR_DENTS)
1740 req->int1 |= EIO_READDIR_CUSTOM2;
1741
1742 req_set_path1 (req, pathname);
1743
1744 REQ_SEND;
1745}
1746
1747void
1748aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1749 PPCODE:
1750{
1751 dREQ;
1752
1753 req->type = EIO_MKDIR;
1754 req->int2 = mode;
1755 req_set_path1 (req, pathname);
1756
1757 REQ_SEND;
1758}
1759
1760void
1761aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1762 ALIAS:
1763 aio_unlink = EIO_UNLINK
1764 aio_rmdir = EIO_RMDIR
1765 aio_readdir = EIO_READDIR
1766 PPCODE:
1767{
1768 dREQ;
1769
1770 req->type = ix;
1771 req_set_path1 (req, pathname);
1772
1773 REQ_SEND;
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1778 ALIAS:
1779 aio_link = EIO_LINK
1780 aio_symlink = EIO_SYMLINK
1781 aio_rename = EIO_RENAME
1782 PPCODE:
1783{
1784 eio_wd wd2 = 0;
1785 dREQ;
1786
1787 req->type = ix;
1788 req_set_path1 (req, oldpath);
1789 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1790 req->int3 = (long)wd2;
1791
1792 REQ_SEND;
1793}
1794
1795void
1796aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1797 PPCODE:
1798{
1799 eio_wd wd2 = 0;
1800 dREQ;
1801
1802 req->type = EIO_RENAME;
1803 req_set_path1 (req, oldpath);
1804 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1805 req->int2 = flags;
1806 req->int3 = (long)wd2;
1807
1808 REQ_SEND;
1809}
1810
1811void
1812aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1813 PPCODE:
1814{
1815 dREQ;
1816
1817 req->type = EIO_MKNOD;
1818 req->int2 = (mode_t)mode;
1819 req->offs = dev;
1820 req_set_path1 (req, pathname);
1821
1822 REQ_SEND;
1823}
1824
1825void
1826aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1827 ALIAS:
1828 aio_mtouch = EIO_MTOUCH
1829 aio_msync = EIO_MSYNC
1830 PPCODE:
1831{
1832 STRLEN svlen;
1833 char *svptr = SvPVbyte (data, svlen);
1834 UV len = SvUV (length);
1835
1836 if (flags < 0)
1837 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1838
1839 if (offset < 0)
1840 offset += svlen;
1841
1842 if (offset < 0 || offset > svlen)
1843 croak ("offset outside of scalar");
1844
1845 if (!SvOK (length) || len + offset > svlen)
1846 len = svlen - offset;
1847
1848 {
1849 dREQ;
1850
1851 req->type = ix;
1852 req->sv2 = SvREFCNT_inc (data);
1853 req->ptr2 = (char *)svptr + offset;
1854 req->size = len;
1855 req->int1 = flags;
1856
1857 REQ_SEND;
1858 }
1859}
1860
1861void
1862aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1863 PPCODE:
1864{
1865 STRLEN svlen;
1866 char *svptr = SvPVbyte (data, svlen);
1867 UV len = SvUV (length);
1868
1869 if (offset < 0)
1870 offset += svlen;
1871
1872 if (offset < 0 || offset > svlen)
1873 croak ("offset outside of scalar");
1874
1875 if (!SvOK (length) || len + offset > svlen)
1876 len = svlen - offset;
1877
1878 {
1879 dREQ;
1880
1881 req->type = EIO_MLOCK;
1882 req->sv2 = SvREFCNT_inc (data);
1883 req->ptr2 = (char *)svptr + offset;
1884 req->size = len;
1885
1886 REQ_SEND;
1887 }
1888}
1889
1890void
1891aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1892 PPCODE:
1893{
1894 dREQ;
1895
1896 req->type = EIO_MLOCKALL;
1897 req->int1 = flags;
1898
1899 REQ_SEND;
1900}
1901
1902void
1903aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1904 PPCODE:
1905{
1906 int fd = s_fileno_croak (fh, 0);
1907 dREQ;
1908
1909 req->type = EIO_CUSTOM;
1910 req->sv1 = newSVsv (fh);
1911 req->int1 = fd;
1912
1913 req->feed = fiemap;
1914#if HAVE_FIEMAP
1915 /* keep our fingers crossed that the next two types are 64 bit */
1916 req->offs = start;
1917 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1918 req->int2 = flags;
1919 req->int3 = SvOK (count) ? SvIV (count) : -1;
1920#endif
1921
1922 REQ_SEND;
1923}
1924
1925void
1926aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1927 PPCODE:
1928{
1929 char *svptr = 0;
1930
1931 sv_clear_foreign (data);
1932
1933 if (length) /* known length, directly read into scalar */
1934 {
1935 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1936 svptr = sv_grow (data, length + 1);
1937 else if (SvCUR (data) < length)
1938 croak ("length outside of scalar, and cannot grow");
1939 else
1940 svptr = SvPVbyte_nolen (data);
1941 }
1942
1943 {
1944 dREQ;
1945
1946 req->type = EIO_SLURP;
1947 req_set_path1 (req, pathname);
1456 req->offs = offset; 1948 req->offs = offset;
1457 req->size = length; 1949 req->size = length;
1458 req->sv2 = SvREFCNT_inc (data); 1950 req->sv2 = SvREFCNT_inc (data);
1459 req->ptr1 = (char *)svptr + dataoffset; 1951 req->ptr2 = svptr;
1460 req->stroffset = dataoffset;
1461 1952
1462 if (!SvREADONLY (data)) 1953 if (!SvREADONLY (data))
1463 { 1954 {
1464 SvREADONLY_on (data); 1955 SvREADONLY_on (data);
1465 req->flags |= FLAG_SV1_RO_OFF; 1956 req->flags |= FLAG_SV2_RO_OFF;
1466 } 1957 }
1467 1958
1468 REQ_SEND; 1959 REQ_SEND;
1469 } 1960 }
1470} 1961}
1471 1962
1472void 1963void
1473aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1964aio_busy (double delay, SV *callback = &PL_sv_undef)
1474 PROTOTYPE: $$;$ 1965 PPCODE:
1966{
1967 dREQ;
1968
1969 req->type = EIO_BUSY;
1970 req->nv1 = delay < 0. ? 0. : delay;
1971
1972 REQ_SEND;
1973}
1974
1975void
1976aio_group (SV *callback = &PL_sv_undef)
1475 PPCODE: 1977 PPCODE:
1476{ 1978{
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: $$$$;$
1495 PPCODE:
1496{
1497 dREQ; 1979 dREQ;
1498 1980
1499 req->type = REQ_SENDFILE; 1981 req->type = EIO_GROUP;
1500 req->sv1 = newSVsv (out_fh);
1501 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1502 req->sv2 = newSVsv (in_fh);
1503 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1504 req->offs = in_offset;
1505 req->size = length;
1506 1982
1507 REQ_SEND; 1983 PUTBACK;
1508} 1984 req_submit (req);
1985 SPAGAIN;
1509 1986
1987 XPUSHs (req_sv (req, aio_grp_stash));
1988}
1989
1510void 1990void
1511aio_readahead (SV *fh, UV offset, IV length, SV *callback=&PL_sv_undef) 1991aio_nop (SV *callback = &PL_sv_undef)
1512 PROTOTYPE: $$$;$ 1992 ALIAS:
1513 PPCODE: 1993 aio_nop = EIO_NOP
1994 aio_sync = EIO_SYNC
1995 PPCODE:
1514{ 1996{
1515 dREQ; 1997 dREQ;
1516 1998
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; 1999 req->type = ix;
1641 req->sv1 = newSVsv (pathname);
1642 req->ptr1 = SvPVbyte_nolen (req->sv1);
1643 2000
1644 REQ_SEND; 2001 REQ_SEND;
1645} 2002}
1646 2003
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 2004int
1732aioreq_pri (int pri = 0) 2005aioreq_pri (int pri = NO_INIT)
1733 PROTOTYPE: ;$
1734 CODE: 2006 CODE:
1735 RETVAL = next_pri - PRI_BIAS; 2007 RETVAL = next_pri;
1736 if (items > 0) 2008 if (items > 0)
1737 { 2009 {
1738 if (pri < PRI_MIN) pri = PRI_MIN; 2010 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1739 if (pri > PRI_MAX) pri = PRI_MAX; 2011 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1740 next_pri = pri + PRI_BIAS; 2012 next_pri = pri;
1741 } 2013 }
1742 OUTPUT: 2014 OUTPUT:
1743 RETVAL 2015 RETVAL
1744 2016
1745void 2017void
1746aioreq_nice (int nice = 0) 2018aioreq_nice (int nice = 0)
1747 CODE: 2019 CODE:
1748 nice = next_pri - nice; 2020 nice = next_pri - nice;
1749 if (nice < PRI_MIN) nice = PRI_MIN; 2021 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1750 if (nice > PRI_MAX) nice = PRI_MAX; 2022 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1751 next_pri = nice + PRI_BIAS; 2023 next_pri = nice;
1752 2024
1753void 2025void
1754flush () 2026flush ()
1755 PROTOTYPE:
1756 CODE: 2027 CODE:
1757 while (nreqs) 2028 while (eio_nreqs ())
1758 { 2029 {
1759 poll_wait (); 2030 poll_wait ();
1760 poll_cb (); 2031 poll_cb ();
1761 } 2032 }
1762 2033
1763int 2034int
1764poll() 2035poll ()
1765 PROTOTYPE:
1766 CODE: 2036 CODE:
1767 poll_wait (); 2037 poll_wait ();
1768 RETVAL = poll_cb (); 2038 RETVAL = poll_cb ();
1769 OUTPUT: 2039 OUTPUT:
1770 RETVAL 2040 RETVAL
1771 2041
1772int 2042int
1773poll_fileno() 2043poll_fileno ()
1774 PROTOTYPE:
1775 CODE: 2044 CODE:
1776 RETVAL = respipe [0]; 2045 RETVAL = s_epipe_fd (&respipe);
1777 OUTPUT: 2046 OUTPUT:
1778 RETVAL 2047 RETVAL
1779 2048
1780int 2049int
1781poll_cb(...) 2050poll_cb (...)
1782 PROTOTYPE: 2051 PROTOTYPE:
1783 CODE: 2052 CODE:
1784 RETVAL = poll_cb (); 2053 RETVAL = poll_cb ();
1785 OUTPUT: 2054 OUTPUT:
1786 RETVAL 2055 RETVAL
1787 2056
1788void 2057void
1789poll_wait() 2058poll_wait ()
1790 PROTOTYPE:
1791 CODE: 2059 CODE:
1792 poll_wait (); 2060 poll_wait ();
1793 2061
1794void
1795setsig (int signum = SIGIO)
1796 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:
1815{
1816 int count;
1817
1818 block_sig ();
1819 PUSHMARK (SP);
1820 PUTBACK;
1821 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1822 SPAGAIN;
1823 unblock_sig ();
1824
1825 if (SvTRUE (ERRSV))
1826 croak (0);
1827
1828 XSRETURN (count);
1829}
1830
1831int 2062int
1832nreqs() 2063nreqs ()
1833 PROTOTYPE:
1834 CODE: 2064 CODE:
1835 RETVAL = nreqs; 2065 RETVAL = eio_nreqs ();
1836 OUTPUT: 2066 OUTPUT:
1837 RETVAL 2067 RETVAL
1838 2068
1839int 2069int
1840nready() 2070nready ()
1841 PROTOTYPE:
1842 CODE: 2071 CODE:
1843 RETVAL = get_nready (); 2072 RETVAL = eio_nready ();
1844 OUTPUT: 2073 OUTPUT:
1845 RETVAL 2074 RETVAL
1846 2075
1847int 2076int
1848npending() 2077npending ()
1849 PROTOTYPE:
1850 CODE: 2078 CODE:
1851 RETVAL = get_npending (); 2079 RETVAL = eio_npending ();
1852 OUTPUT: 2080 OUTPUT:
1853 RETVAL 2081 RETVAL
1854 2082
1855int 2083int
1856nthreads() 2084nthreads ()
1857 PROTOTYPE:
1858 CODE: 2085 CODE:
1859 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2086 RETVAL = eio_nthreads ();
1860 RETVAL = started;
1861 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1862 OUTPUT: 2087 OUTPUT:
1863 RETVAL 2088 RETVAL
1864 2089
2090int
2091fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2092 CODE:
2093 RETVAL = posix_fadvise (fh, offset, length, advice);
2094 OUTPUT:
2095 RETVAL
2096
2097IV
2098sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2099 CODE:
2100 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2101 OUTPUT:
2102 RETVAL
2103
2104void
2105mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2106 PPCODE:
2107 sv_clear_foreign (scalar);
2108{
2109 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2110 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2111 if (addr == (void *)-1)
2112 XSRETURN_NO;
2113
2114 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2115
2116 if (!(prot & PROT_WRITE))
2117 SvREADONLY_on (scalar);
2118
2119 XSRETURN_YES;
2120}
2121
2122void
2123munmap (SV *scalar)
2124 CODE:
2125 sv_clear_foreign (scalar);
2126
2127SV *
2128mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2129 CODE:
2130{
2131 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2132 void *new;
2133
2134 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2135 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2136
2137 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2138
2139 RETVAL = &PL_sv_no;
2140
2141 if (new != (void *)-1)
2142 {
2143 RETVAL = new == (void *)mg->mg_ptr
2144 ? newSVpvn ("0 but true", 10)
2145 : &PL_sv_yes;
2146
2147 mg->mg_ptr = (char *)new;
2148 mg->mg_obj = (SV *)new_length;
2149
2150 SvPVX (scalar) = mg->mg_ptr;
2151 SvCUR_set (scalar, new_length);
2152 }
2153}
2154 OUTPUT:
2155 RETVAL
2156
2157int
2158madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2159 ALIAS:
2160 mprotect = 1
2161 CODE:
2162{
2163 STRLEN svlen;
2164 void *addr = SvPVbyte (scalar, svlen);
2165 STRLEN len = SvUV (length);
2166
2167 if (offset < 0)
2168 offset += svlen;
2169
2170 if (offset < 0 || offset > svlen)
2171 croak ("offset outside of scalar");
2172
2173 if (!SvOK (length) || len + offset > svlen)
2174 len = svlen - offset;
2175
2176 addr = (void *)(((intptr_t)addr) + offset);
2177 eio_page_align (&addr, &len);
2178
2179 switch (ix)
2180 {
2181 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2182 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2183 }
2184}
2185 OUTPUT:
2186 RETVAL
2187
2188int
2189munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2190 CODE:
2191{
2192 STRLEN svlen;
2193 void *addr = SvPVbyte (scalar, svlen);
2194 size_t len = SvUV (length);
2195
2196 if (offset < 0)
2197 offset += svlen;
2198
2199 if (offset < 0 || offset > svlen)
2200 croak ("offset outside of scalar");
2201
2202 if (!SvOK (length) || len + offset > svlen)
2203 len = svlen - offset;
2204
2205 addr = (void *)(((intptr_t)addr) + offset);
2206 eio_page_align (&addr, &len);
2207#if _POSIX_MEMLOCK_RANGE
2208 RETVAL = munlock (addr, len);
2209#else
2210 RETVAL = EIO_ENOSYS ();
2211#endif
2212}
2213 OUTPUT:
2214 RETVAL
2215
2216int
2217munlockall ()
2218 CODE:
2219#if _POSIX_MEMLOCK
2220 munlockall ();
2221#else
2222 RETVAL = EIO_ENOSYS ();
2223#endif
2224 OUTPUT:
2225 RETVAL
2226
2227int
2228splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2229 CODE:
2230{
2231#if HAVE_LINUX_SPLICE
2232 loff_t off_in_, off_out_;
2233 RETVAL = splice (
2234 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2235 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2236 length, flags
2237 );
2238#else
2239 RETVAL = EIO_ENOSYS ();
2240#endif
2241}
2242 OUTPUT:
2243 RETVAL
2244
2245int
2246tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2247 CODE:
2248#if HAVE_LINUX_SPLICE
2249 RETVAL = tee (rfh, wfh, length, flags);
2250#else
2251 RETVAL = EIO_ENOSYS ();
2252#endif
2253 OUTPUT:
2254 RETVAL
2255
2256int
2257pipesize (aio_rfd rfh, int new_size = -1)
2258 PROTOTYPE: $;$
2259 CODE:
2260#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2261 if (new_size >= 0)
2262 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2263 else
2264 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2265#else
2266 errno = ENOSYS;
2267 RETVAL = -1;
2268#endif
2269 OUTPUT:
2270 RETVAL
2271
2272void
2273pipe2 (int flags = 0)
2274 PROTOTYPE: ;$
2275 PPCODE:
2276{
2277 int fd[2];
2278 int res;
2279
2280 if (flags)
2281#if HAVE_PIPE2
2282 res = pipe2 (fd, flags);
2283#else
2284 res = (errno = ENOSYS, -1);
2285#endif
2286 else
2287 res = pipe (fd);
2288
2289 if (!res)
2290 {
2291 EXTEND (SP, 2);
2292 PUSHs (newmortalFH (fd[0], O_RDONLY));
2293 PUSHs (newmortalFH (fd[1], O_WRONLY));
2294 }
2295}
2296
2297void
2298eventfd (unsigned int initval = 0, int flags = 0)
2299 PPCODE:
2300{
2301 int fd;
2302#if HAVE_EVENTFD
2303 fd = eventfd (initval, flags);
2304#else
2305 fd = (errno = ENOSYS, -1);
2306#endif
2307
2308 XPUSHs (newmortalFH (fd, O_RDWR));
2309}
2310
2311void
2312timerfd_create (int clockid, int flags = 0)
2313 PPCODE:
2314{
2315 int fd;
2316#if HAVE_TIMERFD
2317 fd = timerfd_create (clockid, flags);
2318#else
2319 fd = (errno = ENOSYS, -1);
2320#endif
2321
2322 XPUSHs (newmortalFH (fd, O_RDWR));
2323}
2324
2325void
2326timerfd_settime (SV *fh, int flags, NV interval, NV value)
2327 PPCODE:
2328{
2329 int fd = s_fileno_croak (fh, 0);
2330#if HAVE_TIMERFD
2331 int res;
2332 struct itimerspec its, ots;
2333
2334 ts_set (&its.it_interval, interval);
2335 ts_set (&its.it_value , value);
2336 res = timerfd_settime (fd, flags, &its, &ots);
2337
2338 if (!res)
2339 {
2340 EXTEND (SP, 2);
2341 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2342 PUSHs (newSVnv (ts_get (&ots.it_value)));
2343 }
2344#else
2345 errno = ENOSYS;
2346#endif
2347}
2348
2349void
2350timerfd_gettime (SV *fh)
2351 PPCODE:
2352{
2353 int fd = s_fileno_croak (fh, 0);
2354#if HAVE_TIMERFD
2355 int res;
2356 struct itimerspec ots;
2357 res = timerfd_gettime (fd, &ots);
2358
2359 if (!res)
2360 {
2361 EXTEND (SP, 2);
2362 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2363 PUSHs (newSVnv (ts_get (&ots.it_value)));
2364 }
2365#else
2366 errno = ENOSYS;
2367#endif
2368}
2369
2370UV
2371get_fdlimit ()
2372 CODE:
2373#if HAVE_RLIMITS
2374 struct rlimit rl;
2375 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2376 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2377#endif
2378 XSRETURN_UNDEF;
2379 OUTPUT:
2380 RETVAL
2381
2382void
2383min_fdlimit (UV limit = 0x7fffffffU)
2384 CODE:
2385{
2386#if HAVE_RLIMITS
2387 struct rlimit rl;
2388 rlim_t orig_rlim_max;
2389 UV bit;
2390
2391 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2392 goto fail;
2393
2394 if (rl.rlim_cur == RLIM_INFINITY)
2395 XSRETURN_YES;
2396
2397 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2398
2399 if (rl.rlim_cur < limit)
2400 {
2401 rl.rlim_cur = limit;
2402
2403 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2404 rl.rlim_max = rl.rlim_cur;
2405 }
2406
2407 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2408 XSRETURN_YES;
2409
2410 if (errno == EPERM)
2411 {
2412 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2413 /* our limit overflows a system-wide limit */
2414 /* try an adaptive algorithm, but do not lower the hardlimit */
2415 rl.rlim_max = 0;
2416 for (bit = 0x40000000U; bit; bit >>= 1)
2417 {
2418 rl.rlim_max |= bit;
2419 rl.rlim_cur = rl.rlim_max;
2420
2421 /* nevr decrease the hard limit */
2422 if (rl.rlim_max < orig_rlim_max)
2423 break;
2424
2425 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2426 rl.rlim_max &= ~bit; /* too high, remove bit again */
2427 }
2428
2429 /* now, raise the soft limit to the max permitted */
2430 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2431 {
2432 rl.rlim_cur = rl.rlim_max;
2433 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2434 errno = EPERM;
2435 }
2436 }
2437#endif
2438 fail:
2439 XSRETURN_UNDEF;
2440}
2441
2442void _on_next_submit (SV *cb)
2443 CODE:
2444 SvREFCNT_dec (on_next_submit);
2445 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2446
1865PROTOTYPES: DISABLE 2447PROTOTYPES: DISABLE
2448
2449MODULE = IO::AIO PACKAGE = IO::AIO::WD
2450
2451BOOT:
2452{
2453 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2454 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2455}
2456
2457void
2458DESTROY (SV *self)
2459 CODE:
2460{
2461 aio_wd wd = SvAIO_WD (self);
2462#if HAVE_AT
2463 {
2464 SV *callback = &PL_sv_undef;
2465 dREQ; /* clobbers next_pri :/ */
2466 next_pri = req->pri; /* restore next_pri */
2467 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2468 req->type = EIO_WD_CLOSE;
2469 req->wd = wd;
2470 REQ_SEND;
2471 }
2472#else
2473 eio_wd_close_sync (wd);
2474#endif
2475}
1866 2476
1867MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2477MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1868 2478
1869void 2479void
1870cancel (aio_req_ornot req) 2480cancel (aio_req_ornot req)
1871 CODE: 2481 CODE:
1872 req_cancel (req); 2482 eio_cancel (req);
1873 2483
1874void 2484void
1875cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2485cb (aio_req_ornot req, SV *callback = NO_INIT)
1876 CODE: 2486 PPCODE:
2487{
2488 if (GIMME_V != G_VOID)
2489 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2490
2491 if (items > 1)
2492 {
2493 SV *cb_cv = get_cb (callback);
2494
1877 SvREFCNT_dec (req->callback); 2495 SvREFCNT_dec (req->callback);
1878 req->callback = newSVsv (callback); 2496 req->callback = SvREFCNT_inc (cb_cv);
2497 }
2498}
1879 2499
1880MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2500MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1881 2501
1882void 2502void
1883add (aio_req grp, ...) 2503add (aio_req grp, ...)
1884 PPCODE: 2504 PPCODE:
1885{ 2505{
1886 int i; 2506 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 2507
1892 if (grp->int1 == 2) 2508 if (grp->int1 == 2)
1893 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2509 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1894 2510
1895 for (i = 1; i < items; ++i ) 2511 for (i = 1; i < items; ++i )
1896 { 2512 {
2513 aio_req req;
2514
1897 if (GIMME_V != G_VOID) 2515 if (GIMME_V != G_VOID)
1898 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2516 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1899 2517
1900 req = SvAIO_REQ (ST (i)); 2518 req = SvAIO_REQ (ST (i));
1901 2519
1902 if (req) 2520 if (req)
1903 { 2521 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 } 2522 }
1916} 2523}
1917 2524
1918void 2525void
1919cancel_subs (aio_req_ornot req) 2526cancel_subs (aio_req_ornot req)
… …
1928 AV *av; 2535 AV *av;
1929 2536
1930 grp->errorno = errno; 2537 grp->errorno = errno;
1931 2538
1932 av = newAV (); 2539 av = newAV ();
2540 av_extend (av, items - 1);
1933 2541
1934 for (i = 1; i < items; ++i ) 2542 for (i = 1; i < items; ++i )
1935 av_push (av, newSVsv (ST (i))); 2543 av_push (av, newSVsv (ST (i)));
1936 2544
1937 SvREFCNT_dec (grp->sv1); 2545 SvREFCNT_dec (grp->sv1);
… …
1944 grp->errorno = errorno; 2552 grp->errorno = errorno;
1945 2553
1946void 2554void
1947limit (aio_req grp, int limit) 2555limit (aio_req grp, int limit)
1948 CODE: 2556 CODE:
1949 grp->int2 = limit; 2557 eio_grp_limit (grp, limit);
1950 aio_grp_feed (grp);
1951 2558
1952void 2559void
1953feed (aio_req grp, SV *callback=&PL_sv_undef) 2560feed (aio_req grp, SV *callback = &PL_sv_undef)
1954 CODE: 2561 CODE:
1955{ 2562{
1956 SvREFCNT_dec (grp->sv2); 2563 SvREFCNT_dec (grp->sv2);
1957 grp->sv2 = newSVsv (callback); 2564 grp->sv2 = newSVsv (callback);
2565 grp->feed = aio_grp_feed;
1958 2566
1959 if (grp->int2 <= 0) 2567 if (grp->int2 <= 0)
1960 grp->int2 = 2; 2568 grp->int2 = 2;
1961 2569
1962 aio_grp_feed (grp); 2570 eio_grp_limit (grp, grp->int2);
1963} 2571}
1964 2572

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