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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.68 by root, Tue Oct 24 03:40:25 2006 UTC vs.
Revision 1.251 by root, Sat Jan 6 01:04:42 2018 UTC

1#if __linux 1#include "libeio/xthread.h"
2# define _GNU_SOURCE
3#endif
4
5#define _REENTRANT 1
6 2
7#include <errno.h> 3#include <errno.h>
8 4
9#include "EXTERN.h" 5#include "EXTERN.h"
10#include "perl.h" 6#include "perl.h"
11#include "XSUB.h" 7#include "XSUB.h"
12 8
13#include "autoconf/config.h" 9#include "schmorp.h"
14
15#include <pthread.h>
16 10
17#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
18#include <errno.h> 13#include <errno.h>
19#include <sys/time.h>
20#include <sys/select.h>
21#include <sys/types.h> 14#include <sys/types.h>
22#include <sys/stat.h> 15#include <sys/stat.h>
23#include <limits.h> 16#include <limits.h>
24#include <unistd.h>
25#include <fcntl.h> 17#include <fcntl.h>
26#include <signal.h>
27#include <sched.h> 18#include <sched.h>
28 19
29#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
30# if __linux
31# include <sys/sendfile.h>
32# elif __freebsd
33# include <sys/socket.h>
34# include <sys/uio.h> 21# include <sys/mman.h>
35# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
36# include <sys/socket.h> 86 #include <sys/time.h>
37# elif __solaris /* not yet */
38# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "libeio/config.h"
110
111#if HAVE_RLIMITS
112 #include <sys/time.h>
113 #include <sys/resource.h>
114#endif
115
116typedef SV SV8; /* byte-sv, used for argument-checking */
117typedef int aio_rfd; /* read file desriptor */
118typedef int aio_wfd; /* write file descriptor */
119
120static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
121
122#define EIO_REQ_MEMBERS \
123 SV *callback; \
124 SV *sv1, *sv2; \
125 SV *sv3, *sv4; \
126 STRLEN stroffset; \
127 SV *self;
128
129#define EIO_NO_WRAPPERS 1
130
131#include "libeio/eio.h"
132
133static int req_invoke (eio_req *req);
134#define EIO_FINISH(req) req_invoke (req)
135static void req_destroy (eio_req *grp);
136#define EIO_DESTROY(req) req_destroy (req)
137
138#include "libeio/eio.c"
139
140#if !HAVE_POSIX_FADVISE
141# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
142#endif
143
144#if !HAVE_POSIX_MADVISE
145# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef MAP_ANONYMOUS
149# ifdef MAP_ANON
150# define MAP_ANONYMOUS MAP_ANON
39# else 151# else
40# error sendfile support requested but not available 152# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
41# endif 153# endif
42#endif 154#endif
43 155
44/* used for struct dirent, AIX doesn't provide it */ 156/* defines all sorts of constants to 0 unless they are already defined */
45#ifndef NAME_MAX 157/* also provides const_iv_ and const_niv_ macros for them */
46# define NAME_MAX 4096 158#include "def0.h"
47#endif
48 159
49#if __ia64 160#ifndef makedev
50# define STACKSIZE 65536 161# define makedev(maj,min) (((maj) << 8) | (min))
51#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
52# define STACKSIZE PTHREAD_STACK_MIN
53#else
54# define STACKSIZE 16384
55#endif 162#endif
163#ifndef major
164# define major(dev) ((dev) >> 8)
165#endif
166#ifndef minor
167# define minor(dev) ((dev) & 0xff)
168#endif
56 169
57/* buffer size for various temporary buffers */ 170#if PAGESIZE <= 0
58#define AIO_BUFSIZE 65536 171# define PAGESIZE sysconf (_SC_PAGESIZE)
172#endif
59 173
60#define dBUF \ 174/*****************************************************************************/
61 char *aio_buf = malloc (AIO_BUFSIZE); \ 175
62 if (!aio_buf) \ 176#if !_POSIX_MAPPED_FILES
177# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
178# define munmap(addr,length) EIO_ENOSYS ()
179#endif
180
181#if !_POSIX_MEMORY_PROTECTION
182# define mprotect(addr,len,prot) EIO_ENOSYS ()
183#endif
184
185#define FOREIGN_MAGIC PERL_MAGIC_ext
186
187static int ecb_cold
188mmap_free (pTHX_ SV *sv, MAGIC *mg)
189{
190 int old_errno = errno;
191 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
192 errno = old_errno;
193
194 mg->mg_obj = 0; /* just in case */
195
196 SvREADONLY_off (sv);
197
198 if (SvPVX (sv) != mg->mg_ptr)
199 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
200
201 SvCUR_set (sv, 0);
202 SvPVX (sv) = 0;
203 SvOK_off (sv);
204
63 return -1; 205 return 0;
206}
64 207
65#define fBUF free (aio_buf) 208static MGVTBL mmap_vtbl = {
66 209 0, 0, 0, 0, mmap_free
67enum {
68 REQ_QUIT,
69 REQ_OPEN, REQ_CLOSE,
70 REQ_READ, REQ_WRITE, REQ_READAHEAD,
71 REQ_SENDFILE,
72 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
73 REQ_FSYNC, REQ_FDATASYNC,
74 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
75 REQ_READDIR,
76 REQ_LINK, REQ_SYMLINK,
77 REQ_GROUP, REQ_NOP,
78 REQ_SLEEP,
79}; 210};
80 211
81#define AIO_REQ_KLASS "IO::AIO::REQ" 212static int ecb_cold
82#define AIO_GRP_KLASS "IO::AIO::GRP" 213sysfree_free (pTHX_ SV *sv, MAGIC *mg)
83
84typedef struct aio_cb
85{ 214{
86 struct aio_cb *volatile next; 215 free (mg->mg_ptr);
216 mg->mg_obj = 0; /* just in case */
87 217
88 SV *data, *callback; 218 SvREADONLY_off (sv);
89 SV *fh, *fh2;
90 void *dataptr, *data2ptr;
91 Stat_t *statdata;
92 off_t offset;
93 size_t length;
94 ssize_t result;
95 219
96 STRLEN dataoffset; 220 if (SvPVX (sv) != mg->mg_ptr)
97 int type; 221 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
98 int fd, fd2;
99 int errorno;
100 mode_t mode; /* open */
101 222
102 unsigned char flags; 223 SvCUR_set (sv, 0);
103 unsigned char pri; 224 SvPVX (sv) = 0;
225 SvOK_off (sv);
104 226
105 SV *self; /* the perl counterpart of this request, if any */ 227 return 0;
106 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 228}
107} aio_cb;
108 229
109enum { 230static MGVTBL sysfree_vtbl = {
110 FLAG_CANCELLED = 0x01, 231 0, 0, 0, 0, sysfree_free
111}; 232};
112 233
113typedef aio_cb *aio_req; 234/*****************************************************************************/
114typedef aio_cb *aio_req_ornot;
115 235
116enum { 236/* helper: set scalar to foreign ptr with custom free */
117 PRI_MIN = -4, 237static void
118 PRI_MAX = 4, 238sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
239{
240 sv_force_normal (sv);
119 241
120 DEFAULT_PRI = 0, 242 /* we store the length in mg_obj, as namlen is I32 :/ */
121 PRI_BIAS = -PRI_MIN, 243 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
122 NUM_PRI = PRI_MAX + PRI_BIAS + 1, 244 ->mg_obj = (SV *)length;
123};
124 245
125static int next_pri = DEFAULT_PRI + PRI_BIAS; 246 SvUPGRADE (sv, SVt_PV); /* nop... */
126 247
127static int started, wanted; 248 if (SvLEN (sv))
128static volatile int nreqs; 249 Safefree (SvPVX (sv));
129static int max_outstanding = 1<<30;
130static int respipe [2];
131 250
132#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 251 SvPVX (sv) = (char *)addr;
133# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 252 SvCUR_set (sv, length);
134#else 253 SvLEN_set (sv, 0);
135# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 254 SvPOK_only (sv);
136#endif 255}
137 256
138static pthread_mutex_t reslock = AIO_MUTEX_INIT; 257static void
139static pthread_mutex_t reqlock = AIO_MUTEX_INIT; 258sv_clear_foreign (SV *sv)
140static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 259{
260 /* todo: iterate over magic and only free ours, but of course */
261 /* the perl5porters will call that (correct) behaviour buggy */
262 sv_unmagic (sv, FOREIGN_MAGIC);
263}
141 264
142/* 265/*****************************************************************************/
143 * a somewhat faster data structure might be nice, but 266
144 * with 8 priorities this actually needs <20 insns 267static void
145 * per shift, the most expensive operation. 268fiemap (eio_req *req)
269{
270 req->result = -1;
271
272#if HAVE_FIEMAP
273 /* assume some c99 */
274 struct fiemap *fiemap = 0;
275 size_t end_offset;
276 int count = req->int3;
277
278 req->flags |= EIO_FLAG_PTR1_FREE;
279
280 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
281 /* increase in 3.5kb steps */
282 if (count < 0)
283 count = 8;
284
285 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
286 errno = ENOMEM;
287 if (!fiemap)
288 return;
289
290 req->ptr1 = fiemap;
291
292 fiemap->fm_start = req->offs;
293 fiemap->fm_length = req->size;
294 fiemap->fm_flags = req->int2;
295 fiemap->fm_extent_count = count;
296
297 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
298 return;
299
300 if (req->int3 >= 0 /* not autosizing */
301 || !fiemap->fm_mapped_extents /* no more extents */
302 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
303 goto done;
304
305 /* else we have to loop -
306 * it would be tempting (actually I tried that first) to just query the
307 * number of extents needed, but linux often feels like not returning all
308 * extents, without telling us it left any out. this complicates
309 * this quite a bit.
146 */ 310 */
147typedef struct {
148 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
149 int size;
150} reqq;
151 311
152static reqq req_queue; 312 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
153static reqq res_queue;
154 313
155int reqq_push (reqq *q, aio_req req) 314 for (;;)
156{
157 int pri = req->pri;
158 req->next = 0;
159
160 if (q->qe[pri])
161 { 315 {
162 q->qe[pri]->next = req; 316 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
163 q->qe[pri] = req; 317 char scratch[3072];
164 } 318 struct fiemap *incmap = (struct fiemap *)scratch;
165 else
166 q->qe[pri] = q->qs[pri] = req;
167 319
168 return q->size++; 320 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
169} 321 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
322 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
323 incmap->fm_flags = fiemap->fm_flags;
324 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
170 325
171aio_req reqq_shift (reqq *q) 326 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
172{
173 int pri;
174
175 if (!q->size)
176 return 0; 327 return;
177 328
178 --q->size; 329 if (!incmap->fm_mapped_extents)
330 goto done;
179 331
180 for (pri = NUM_PRI; pri--; ) 332 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
181 { 333 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
182 aio_req req = q->qs[pri]; 334 errno = ENOMEM;
183
184 if (req) 335 if (!fiemap)
336 return;
337
338 req->ptr1 = fiemap;
339
340 for (count = 0; count < incmap->fm_mapped_extents; ++count)
185 { 341 {
186 if (!(q->qs[pri] = req->next)) 342 struct fiemap_extent *e = incmap->fm_extents + count;
187 q->qe[pri] = 0;
188 343
189 return req; 344 if (e->fe_logical + e->fe_length >= end_offset)
345 goto done;
346
347 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
348
349 if (e->fe_flags & FIEMAP_EXTENT_LAST)
350 goto done;
351
190 } 352 }
191 } 353 }
192 354
193 abort (); 355done:
194} 356 req->result = 0;
195 357
358#else
359 errno = ENOSYS;
360#endif
361}
362
363/*****************************************************************************/
364
365enum {
366 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
367};
368
369typedef eio_req *aio_req;
370typedef eio_req *aio_req_ornot;
371typedef eio_wd aio_wd;
372
373static SV *on_next_submit;
374static int next_pri = EIO_PRI_DEFAULT;
375static int max_outstanding;
376
377static s_epipe respipe;
378
379static void req_destroy (aio_req req);
196static void req_invoke (aio_req req); 380static void req_cancel (aio_req req);
197static void req_free (aio_req req); 381
382static void
383want_poll (void)
384{
385 /* write a dummy byte to the pipe so fh becomes ready */
386 s_epipe_signal (&respipe);
387}
388
389static void
390done_poll (void)
391{
392 /* read any signals sent by the worker threads */
393 s_epipe_drain (&respipe);
394}
198 395
199/* must be called at most once */ 396/* must be called at most once */
200static SV *req_sv (aio_req req, const char *klass) 397static SV *
398req_sv (aio_req req, HV *stash)
201{ 399{
202 if (!req->self) 400 if (!req->self)
203 { 401 {
204 req->self = (SV *)newHV (); 402 req->self = (SV *)newHV ();
205 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 403 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
206 } 404 }
207 405
208 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 406 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
209} 407}
210 408
211static aio_req SvAIO_REQ (SV *sv) 409static SV *
410newSVaio_wd (aio_wd wd)
411{
412 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
413}
414
415static aio_req
416SvAIO_REQ (SV *sv)
212{ 417{
213 MAGIC *mg; 418 MAGIC *mg;
214 419
215 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 420 if (!SvROK (sv)
421 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
422 || (SvSTASH (SvRV (sv)) != aio_grp_stash
423 && SvSTASH (SvRV (sv)) != aio_req_stash
424 && !sv_derived_from (sv, "IO::AIO::REQ")))
216 croak ("object of class " AIO_REQ_KLASS " expected"); 425 croak ("object of class IO::AIO::REQ expected");
217 426
218 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 427 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
219 428
220 return mg ? (aio_req)mg->mg_ptr : 0; 429 return mg ? (aio_req)mg->mg_ptr : 0;
221} 430}
222 431
432static aio_wd
433SvAIO_WD (SV *sv)
434{
435 if (!SvROK (sv)
436 || SvTYPE (SvRV (sv)) != SVt_PVMG
437 || SvSTASH (SvRV (sv)) != aio_wd_stash)
438 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
439
440 return (aio_wd)(long)SvIVX (SvRV (sv));
441}
442
443static SV *
444newmortalFH (int fd, int flags)
445{
446 if (fd < 0)
447 return &PL_sv_undef;
448
449 GV *gv = (GV *)sv_newmortal ();
450 char sym[64];
451 int symlen;
452
453 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
454 gv_init (gv, aio_stash, sym, symlen, 0);
455
456 symlen = snprintf (
457 sym,
458 sizeof (sym),
459 "%s&=%d",
460 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461 fd
462 );
463
464 return do_open (gv, sym, symlen, 0, 0, 0, 0)
465 ? (SV *)gv : &PL_sv_undef;
466}
467
468static void
223static void aio_grp_feed (aio_req grp) 469aio_grp_feed (aio_req grp)
224{ 470{
225 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 471 if (grp->sv2 && SvOK (grp->sv2))
226 { 472 {
227 int old_len = grp->length;
228
229 if (grp->fh2 && SvOK (grp->fh2))
230 {
231 dSP; 473 dSP;
232 474
233 ENTER; 475 ENTER;
234 SAVETMPS; 476 SAVETMPS;
235 PUSHMARK (SP); 477 PUSHMARK (SP);
236 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 478 XPUSHs (req_sv (grp, aio_grp_stash));
237 PUTBACK; 479 PUTBACK;
238 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 480 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
239 SPAGAIN; 481 SPAGAIN;
240 FREETMPS; 482 FREETMPS;
241 LEAVE; 483 LEAVE;
242 }
243
244 /* stop if no progress has been made */
245 if (old_len == grp->length)
246 {
247 SvREFCNT_dec (grp->fh2);
248 grp->fh2 = 0;
249 break;
250 }
251 } 484 }
252} 485}
253 486
254static void aio_grp_dec (aio_req grp) 487static void
488req_submit (eio_req *req)
255{ 489{
256 --grp->length; 490 eio_submit (req);
257 491
258 /* call feeder, if applicable */ 492 if (expect_false (on_next_submit))
259 aio_grp_feed (grp);
260
261 /* finish, if done */
262 if (!grp->length && grp->fd)
263 { 493 {
264 req_invoke (grp); 494 dSP;
265 req_free (grp); 495 SV *cb = sv_2mortal (on_next_submit);
496
497 on_next_submit = 0;
498
499 PUSHMARK (SP);
500 PUTBACK;
501 call_sv (cb, G_DISCARD | G_EVAL);
266 } 502 }
267} 503}
268 504
269static void poll_wait () 505static int
506req_invoke (eio_req *req)
270{ 507{
271 fd_set rfd; 508 if (req->flags & FLAG_SV2_RO_OFF)
509 SvREADONLY_off (req->sv2);
272 510
273 while (nreqs) 511 if (!EIO_CANCELLED (req) && req->callback)
274 { 512 {
275 int size;
276#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
277 pthread_mutex_lock (&reslock);
278#endif
279 size = res_queue.size;
280#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
281 pthread_mutex_unlock (&reslock);
282#endif
283
284 if (size)
285 return;
286
287 FD_ZERO(&rfd);
288 FD_SET(respipe [0], &rfd);
289
290 select (respipe [0] + 1, &rfd, 0, 0, 0);
291 }
292}
293
294static void req_invoke (aio_req req)
295{
296 dSP; 513 dSP;
297 514 static SV *sv_result_cache; /* caches the result integer SV */
298 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 515 SV *sv_result;
299 {
300 errno = req->errorno;
301 516
302 ENTER; 517 ENTER;
303 SAVETMPS; 518 SAVETMPS;
304 PUSHMARK (SP); 519 PUSHMARK (SP);
305 EXTEND (SP, 1); 520 EXTEND (SP, 1);
306 521
522 /* do not recreate the result IV from scratch each time */
523 if (expect_true (sv_result_cache))
524 {
525 sv_result = sv_result_cache; sv_result_cache = 0;
526 SvIV_set (sv_result, req->result);
527 SvIOK_only (sv_result);
528 }
529 else
530 {
531 sv_result = newSViv (req->result);
532 SvREADONLY_on (sv_result);
533 }
534
307 switch (req->type) 535 switch (req->type)
308 { 536 {
537 case EIO_WD_OPEN:
538 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
539 break;
540
309 case REQ_READDIR: 541 case EIO_READDIR:
310 { 542 {
311 SV *rv = &PL_sv_undef; 543 SV *rv = &PL_sv_undef;
312 544
313 if (req->result >= 0) 545 if (req->result >= 0)
314 { 546 {
547 int i;
315 char *buf = req->data2ptr; 548 char *names = (char *)req->ptr2;
549 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
316 AV *av = newAV (); 550 AV *av = newAV ();
317 551
318 while (req->result) 552 av_extend (av, req->result - 1);
553
554 for (i = 0; i < req->result; ++i)
319 { 555 {
556 if (req->int1 & EIO_READDIR_DENTS)
557 {
558 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
559
560 if (req->int1 & EIO_READDIR_CUSTOM2)
561 {
562 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
563 AV *avent = newAV ();
564
565 av_extend (avent, 2);
566
567 if (!sv_type [ent->type])
568 {
569 sv_type [ent->type] = newSViv (ent->type);
570 SvREADONLY_on (sv_type [ent->type]);
571 }
572
573 av_store (avent, 0, namesv);
574 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
575 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
576
577 av_store (av, i, newRV_noinc ((SV *)avent));
578 }
579 else
580 av_store (av, i, namesv);
581
582 ++ent;
583 }
584 else
585 {
320 SV *sv = newSVpv (buf, 0); 586 SV *name = newSVpv (names, 0);
321
322 av_push (av, sv); 587 av_store (av, i, name);
323 buf += SvCUR (sv) + 1; 588 names += SvCUR (name) + 1;
324 req->result--; 589 }
325 } 590 }
326 591
327 rv = sv_2mortal (newRV_noinc ((SV *)av)); 592 rv = sv_2mortal (newRV_noinc ((SV *)av));
328 } 593 }
329 594
330 PUSHs (rv); 595 PUSHs (rv);
596
597 if (req->int1 & EIO_READDIR_CUSTOM1)
598 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
331 } 599 }
332 break; 600 break;
333 601
334 case REQ_OPEN: 602 case EIO_OPEN:
603 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
604 break;
605
606 case EIO_STATVFS:
607 case EIO_FSTATVFS:
335 { 608 {
336 /* convert fd to fh */ 609 SV *rv = &PL_sv_undef;
337 SV *fh; 610
611#ifndef _WIN32
612 if (req->result >= 0)
613 {
614 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
615 HV *hv = newHV ();
616 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
617 * chooses to make it a struct.
618 */
619 unsigned long fsid = 0;
620 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
338 621
339 PUSHs (sv_2mortal (newSViv (req->result))); 622 rv = sv_2mortal (newRV_noinc ((SV *)hv));
340 PUTBACK;
341 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
342 SPAGAIN;
343 623
344 fh = SvREFCNT_inc (POPs); 624 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
625 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
626 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
627 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
628 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
629 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
630 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
631 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
632 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
633 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
634 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
635 }
636#endif
345 637
346 PUSHMARK (SP); 638 PUSHs (rv);
347 XPUSHs (sv_2mortal (fh));
348 } 639 }
640
349 break; 641 break;
350 642
351 case REQ_GROUP: 643 case EIO_GROUP:
352 req->fd = 2; /* mark group as finished */ 644 req->int1 = 2; /* mark group as finished */
353 645
354 if (req->data) 646 if (req->sv1)
355 { 647 {
356 int i; 648 int i;
357 AV *av = (AV *)req->data; 649 AV *av = (AV *)req->sv1;
358 650
359 EXTEND (SP, AvFILL (av) + 1); 651 EXTEND (SP, AvFILL (av) + 1);
360 for (i = 0; i <= AvFILL (av); ++i) 652 for (i = 0; i <= AvFILL (av); ++i)
361 PUSHs (*av_fetch (av, i, 0)); 653 PUSHs (*av_fetch (av, i, 0));
362 } 654 }
363 break; 655 break;
364 656
365 case REQ_NOP: 657 case EIO_NOP:
366 case REQ_SLEEP: 658 case EIO_BUSY:
367 break; 659 break;
368 660
661 case EIO_READLINK:
662 case EIO_REALPATH:
663 if (req->result > 0)
664 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
665 break;
666
667 case EIO_STAT:
668 case EIO_LSTAT:
669 case EIO_FSTAT:
670 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
671
672 if (!(PL_laststatval = req->result))
673 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
674 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
675
676 PUSHs (sv_result);
677 break;
678
679 case EIO_SEEK:
680 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
681 break;
682
683 case EIO_READ:
684 {
685 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
686 *SvEND (req->sv2) = 0;
687 SvPOK_only (req->sv2);
688 SvSETMAGIC (req->sv2);
689 PUSHs (sv_result);
690 }
691 break;
692
693 case EIO_SLURP:
694 {
695 if (req->result >= 0)
696 {
697 /* if length was originally not known, we steal the malloc'ed memory */
698 if (req->flags & EIO_FLAG_PTR2_FREE)
699 {
700 req->flags &= ~EIO_FLAG_PTR2_FREE;
701 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
702 }
703 else
704 SvCUR_set (req->sv2, req->result);
705 }
706
707 PUSHs (sv_result);
708 }
709 break;
710
711 case EIO_CUSTOM:
712 if (req->feed == fiemap)
713 {
714#if HAVE_FIEMAP
715 if (!req->result)
716 {
717 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
718
719 if (fiemap->fm_extent_count)
720 {
721 AV *av = newAV ();
722 int i;
723
724 while (fiemap->fm_mapped_extents)
725 {
726 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
727 AV *ext_av = newAV ();
728
729 av_store (ext_av, 3, newSVuv (extent->fe_flags));
730 av_store (ext_av, 2, newSVval64 (extent->fe_length));
731 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
732 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
733
734 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
735 }
736
737 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
738 }
739 else
740 {
741 SvIV_set (sv_result, fiemap->fm_mapped_extents);
742 PUSHs (sv_result);
743 }
744 }
745#endif
746 }
747 else
748 PUSHs (sv_result);
749 break;
750
751 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
752 if (req->result > 0)
753 SvIV_set (sv_result, 0);
754 /* FALLTHROUGH */
755
369 default: 756 default:
370 PUSHs (sv_2mortal (newSViv (req->result))); 757 PUSHs (sv_result);
371 break; 758 break;
372 } 759 }
373 760
761 errno = req->errorno;
374 762
375 PUTBACK; 763 PUTBACK;
376 call_sv (req->callback, G_VOID | G_EVAL); 764 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
377 SPAGAIN; 765 SPAGAIN;
766
767 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
768 SvREFCNT_dec (sv_result);
769 else
770 sv_result_cache = sv_result;
378 771
379 FREETMPS; 772 FREETMPS;
380 LEAVE; 773 LEAVE;
774
775 PUTBACK;
381 } 776 }
382 777
383 if (req->grp) 778 return !!SvTRUE (ERRSV);
384 {
385 aio_req grp = req->grp;
386
387 /* unlink request */
388 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
389 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
390
391 if (grp->grp_first == req)
392 grp->grp_first = req->grp_next;
393
394 aio_grp_dec (grp);
395 }
396
397 if (SvTRUE (ERRSV))
398 {
399 req_free (req);
400 croak (0);
401 }
402} 779}
403 780
404static void req_free (aio_req req) 781static void
782req_destroy (aio_req req)
405{ 783{
406 if (req->self) 784 if (req->self)
407 { 785 {
408 sv_unmagic (req->self, PERL_MAGIC_ext); 786 sv_unmagic (req->self, PERL_MAGIC_ext);
409 SvREFCNT_dec (req->self); 787 SvREFCNT_dec (req->self);
410 } 788 }
411 789
412 SvREFCNT_dec (req->data);
413 SvREFCNT_dec (req->fh); 790 SvREFCNT_dec (req->sv1);
414 SvREFCNT_dec (req->fh2); 791 SvREFCNT_dec (req->sv2);
792 SvREFCNT_dec (req->sv3);
793 SvREFCNT_dec (req->sv4);
415 SvREFCNT_dec (req->callback); 794 SvREFCNT_dec (req->callback);
416 Safefree (req->statdata);
417 795
418 if (req->type == REQ_READDIR && req->result >= 0)
419 free (req->data2ptr);
420
421 Safefree (req); 796 free (req);
422} 797}
423 798
424static void req_cancel (aio_req req) 799static void
800req_cancel_subs (aio_req grp)
425{ 801{
426 req->flags |= FLAG_CANCELLED;
427
428 if (req->type == REQ_GROUP) 802 if (grp->type != EIO_GROUP)
803 return;
804
805 SvREFCNT_dec (grp->sv2);
806 grp->sv2 = 0;
807
808 eio_grp_cancel (grp);
809}
810
811static void ecb_cold
812create_respipe (void)
813{
814 if (s_epipe_renew (&respipe))
815 croak ("IO::AIO: unable to initialize result pipe");
816}
817
818static void
819poll_wait (void)
820{
821 while (eio_nreqs ())
429 { 822 {
430 aio_req sub; 823 int size;
431 824
432 for (sub = req->grp_first; sub; sub = sub->grp_next) 825 X_LOCK (EIO_POOL->reslock);
433 req_cancel (sub); 826 size = EIO_POOL->res_queue.size;
827 X_UNLOCK (EIO_POOL->reslock);
828
829 if (size)
830 return;
831
832 etp_maybe_start_thread (EIO_POOL);
833
834 s_epipe_wait (&respipe);
434 } 835 }
435} 836}
436 837
437static int poll_cb () 838static int
839poll_cb (void)
438{ 840{
439 dSP;
440 int count = 0;
441 int do_croak = 0;
442 aio_req req;
443
444 for (;;) 841 for (;;)
445 { 842 {
446 pthread_mutex_lock (&reslock); 843 int res = eio_poll ();
447 req = reqq_shift (&res_queue);
448 844
449 if (req) 845 if (res > 0)
846 croak (0);
847
848 if (!max_outstanding || max_outstanding > eio_nreqs ())
849 return res;
850
851 poll_wait ();
852 }
853}
854
855static void ecb_cold
856reinit (void)
857{
858 create_respipe ();
859
860 if (eio_init (want_poll, done_poll) < 0)
861 croak ("IO::AIO: unable to initialise eio library");
862}
863
864/*****************************************************************************/
865
866static SV *
867get_cb (SV *cb_sv)
868{
869 SvGETMAGIC (cb_sv);
870 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
871}
872
873static aio_req ecb_noinline
874dreq (SV *callback)
875{
876 SV *cb_cv;
877 aio_req req;
878 int req_pri = next_pri;
879 next_pri = EIO_PRI_DEFAULT;
880
881 cb_cv = get_cb (callback);
882
883 req = calloc (sizeof (*req), 1);
884 if (!req)
885 croak ("out of memory during eio_req allocation");
886
887 req->callback = SvREFCNT_inc (cb_cv);
888 req->pri = req_pri;
889
890 return req;
891}
892
893#define dREQ \
894 aio_req req = dreq (callback); \
895
896#define REQ_SEND \
897 PUTBACK; \
898 req_submit (req); \
899 SPAGAIN; \
900 \
901 if (GIMME_V != G_VOID) \
902 XPUSHs (req_sv (req, aio_req_stash));
903
904ecb_inline void
905req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
906{
907 if (expect_false (SvROK (path)))
908 {
909 SV *rv = SvRV (path);
910 SV *wdob;
911
912 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
450 { 913 {
451 if (!res_queue.size) 914 path = AvARRAY (rv)[1];
915 wdob = AvARRAY (rv)[0];
916
917 if (SvOK (wdob))
452 { 918 {
453 /* read any signals sent by the worker threads */ 919 *wd = SvAIO_WD (wdob);
454 char buf [32]; 920 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
455 while (read (respipe [0], buf, 32) == 32)
456 ;
457 } 921 }
922 else
923 *wd = EIO_INVALID_WD;
458 } 924 }
459 925 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
460 pthread_mutex_unlock (&reslock);
461
462 if (!req)
463 break;
464
465 --nreqs;
466
467 if (req->type == REQ_QUIT)
468 started--;
469 else if (req->type == REQ_GROUP && req->length)
470 { 926 {
471 req->fd = 1; /* mark request as delayed */ 927 *wd = (aio_wd)(long)SvIVX (rv);
472 continue; 928 *wdsv = SvREFCNT_inc_NN (rv);
929 *ptr = ".";
930 return; /* path set to "." */
473 } 931 }
474 else 932 else
475 { 933 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
476 if (req->type == REQ_READ)
477 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
478
479 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
480 SvREADONLY_off (req->data);
481
482 if (req->statdata)
483 {
484 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
485 PL_laststatval = req->result;
486 PL_statcache = *(req->statdata);
487 }
488
489 req_invoke (req);
490
491 count++;
492 }
493
494 req_free (req);
495 } 934 }
496 935
497 return count; 936 *pathsv = newSVsv (path);
937 *ptr = SvPVbyte_nolen (*pathsv);
498} 938}
499 939
500static void *aio_proc(void *arg); 940static void ecb_noinline
501 941req_set_path1 (aio_req req, SV *path)
502static void start_thread (void)
503{ 942{
504 sigset_t fullsigset, oldsigset; 943 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
505 pthread_t tid;
506 pthread_attr_t attr;
507
508 pthread_attr_init (&attr);
509 pthread_attr_setstacksize (&attr, STACKSIZE);
510 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
511
512 sigfillset (&fullsigset);
513 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
514
515 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
516 started++;
517
518 sigprocmask (SIG_SETMASK, &oldsigset, 0);
519} 944}
520 945
521static void req_send (aio_req req) 946static void ecb_noinline
947req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
522{ 948{
523 while (started < wanted && nreqs >= started) 949 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
524 start_thread ();
525 950
526 ++nreqs; 951 switch (SvTYPE (rv))
527
528 pthread_mutex_lock (&reqlock);
529 reqq_push (&req_queue, req);
530 pthread_cond_signal (&reqwait);
531 pthread_mutex_unlock (&reqlock);
532
533 if (nreqs > max_outstanding)
534 for (;;)
535 {
536 poll_cb ();
537
538 if (nreqs <= max_outstanding)
539 break;
540
541 poll_wait ();
542 }
543}
544
545static void end_thread (void)
546{
547 aio_req req;
548
549 Newz (0, req, 1, aio_cb);
550
551 req->type = REQ_QUIT;
552 req->pri = PRI_MAX + PRI_BIAS;
553
554 req_send (req);
555}
556
557static void min_parallel (int nthreads)
558{
559 if (wanted < nthreads)
560 wanted = nthreads;
561}
562
563static void max_parallel (int nthreads)
564{
565 int cur = started;
566
567 if (wanted > nthreads)
568 wanted = nthreads;
569
570 while (cur > wanted)
571 { 952 {
572 end_thread (); 953 case SVt_PVIO:
573 cur--; 954 case SVt_PVLV:
955 case SVt_PVGV:
956 req->type = type_fh;
957 req->sv1 = newSVsv (fh_or_path);
958 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
959 break;
960
961 default:
962 req->type = type_path;
963 req_set_path1 (req, fh_or_path);
964 break;
574 } 965 }
575
576 while (started > wanted)
577 {
578 poll_wait ();
579 poll_cb ();
580 }
581} 966}
582 967
583static void create_pipe () 968XS(boot_IO__AIO) ecb_cold;
584{
585 if (pipe (respipe))
586 croak ("unable to initialize result pipe");
587 969
588 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 970MODULE = IO::AIO PACKAGE = IO::AIO
589 croak ("cannot set result pipe to nonblocking mode");
590 971
591 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 972PROTOTYPES: ENABLE
592 croak ("cannot set result pipe to nonblocking mode");
593}
594 973
595/*****************************************************************************/ 974BOOT:
596/* work around various missing functions */
597
598#if !HAVE_PREADWRITE
599# define pread aio_pread
600# define pwrite aio_pwrite
601
602/*
603 * make our pread/pwrite safe against themselves, but not against
604 * normal read/write by using a mutex. slows down execution a lot,
605 * but that's your problem, not mine.
606 */
607static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
608
609static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
610{ 975{
611 ssize_t res; 976 static const struct {
612 off_t ooffset; 977 const char *name;
978 IV iv;
979 } *civ, const_iv[] = {
980# define const_niv(name, value) { # name, (IV) value },
981# define const_iv(name) { # name, (IV) name },
982# define const_eio(name) { # name, (IV) EIO_ ## name },
613 983
614 pthread_mutex_lock (&preadwritelock); 984 /* you have to re-run ./gendef0 after adding/removing any constants here */
615 ooffset = lseek (fd, 0, SEEK_CUR); 985 /* the first block can be undef if missing */
616 lseek (fd, offset, SEEK_SET); 986 const_iv (ENOSYS)
617 res = read (fd, buf, count); 987 const_iv (EXDEV)
618 lseek (fd, ooffset, SEEK_SET); 988 const_iv (EBADR)
619 pthread_mutex_unlock (&preadwritelock);
620 989
621 return res; 990 /* for lseek */
622} 991 const_iv (SEEK_DATA)
992 const_iv (SEEK_HOLE)
623 993
624static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 994 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
625{ 995 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
626 ssize_t res; 996 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
627 off_t ooffset; 997 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
998 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
999 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
628 1000
629 pthread_mutex_lock (&preadwritelock); 1001 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
630 ooffset = lseek (fd, 0, SEEK_CUR); 1002 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
631 lseek (fd, offset, SEEK_SET); 1003 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
632 res = write (fd, buf, count); 1004 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
633 lseek (fd, offset, SEEK_SET); 1005 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
634 pthread_mutex_unlock (&preadwritelock);
635 1006
636 return res; 1007 /* the second block will be 0 when missing */
637} 1008 const_iv (O_RDONLY)
638#endif 1009 const_iv (O_WRONLY)
1010 const_iv (O_RDWR)
1011 const_iv (O_CREAT)
1012 const_iv (O_TRUNC)
1013 const_iv (O_EXCL)
1014 const_iv (O_APPEND)
639 1015
640#if !HAVE_FDATASYNC 1016 const_iv (O_ASYNC)
641# define fdatasync fsync 1017 const_iv (O_DIRECT)
642#endif 1018 const_iv (O_NOATIME)
643 1019
644#if !HAVE_READAHEAD 1020 const_iv (O_CLOEXEC)
645# define readahead aio_readahead 1021 const_iv (O_NOCTTY)
1022 const_iv (O_NOFOLLOW)
1023 const_iv (O_NONBLOCK)
1024 const_iv (O_EXEC)
1025 const_iv (O_SEARCH)
1026 const_iv (O_DIRECTORY)
1027 const_iv (O_DSYNC)
1028 const_iv (O_RSYNC)
1029 const_iv (O_SYNC)
1030 const_iv (O_PATH)
1031 const_iv (O_TMPFILE)
1032 const_iv (O_TTY_INIT)
646 1033
647static ssize_t readahead (int fd, off_t offset, size_t count) 1034 const_iv (S_IFIFO)
648{ 1035 const_iv (S_IFCHR)
649 dBUF; 1036 const_iv (S_IFBLK)
1037 const_iv (S_IFLNK)
1038 const_iv (S_IFREG)
1039 const_iv (S_IFDIR)
1040 const_iv (S_IFWHT)
1041 const_iv (S_IFSOCK)
1042 const_iv (S_IFMT)
650 1043
651 while (count > 0) 1044 const_iv (ST_RDONLY)
652 { 1045 const_iv (ST_NOSUID)
653 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 1046 const_iv (ST_NODEV)
1047 const_iv (ST_NOEXEC)
1048 const_iv (ST_SYNCHRONOUS)
1049 const_iv (ST_MANDLOCK)
1050 const_iv (ST_WRITE)
1051 const_iv (ST_APPEND)
1052 const_iv (ST_IMMUTABLE)
1053 const_iv (ST_NOATIME)
1054 const_iv (ST_NODIRATIME)
1055 const_iv (ST_RELATIME)
654 1056
655 pread (fd, aio_buf, len, offset); 1057 const_iv (PROT_NONE)
656 offset += len; 1058 const_iv (PROT_EXEC)
657 count -= len; 1059 const_iv (PROT_READ)
658 } 1060 const_iv (PROT_WRITE)
659 1061
660 fBUF; 1062 const_iv (MAP_PRIVATE)
1063 const_iv (MAP_SHARED)
1064 const_iv (MAP_FIXED)
1065 const_iv (MAP_ANONYMOUS)
661 1066
662 errno = 0; 1067 /* linuxish */
663} 1068 const_iv (MAP_LOCKED)
664#endif 1069 const_iv (MAP_NORESERVE)
1070 const_iv (MAP_POPULATE)
1071 const_iv (MAP_NONBLOCK)
1072 const_iv (MAP_GROWSDOWN)
1073 const_iv (MAP_32BIT)
1074 const_iv (MAP_HUGETLB)
1075 const_iv (MAP_STACK)
665 1076
666#if !HAVE_READDIR_R 1077 const_iv (F_DUPFD_CLOEXEC)
667# define readdir_r aio_readdir_r
668 1078
669static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1079 const_iv (F_OFD_GETLK)
670 1080 const_iv (F_OFD_SETLK)
671static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1081 const_iv (F_OFD_GETLKW)
672{
673 struct dirent *e;
674 int errorno;
675 1082
676 pthread_mutex_lock (&readdirlock); 1083 const_iv (FIFREEZE)
1084 const_iv (FITHAW)
1085 const_iv (FITRIM)
1086 const_iv (FICLONE)
1087 const_iv (FICLONERANGE)
1088 const_iv (FIDEDUPERANGE)
677 1089
678 e = readdir (dirp); 1090 const_iv (FS_IOC_GETFLAGS)
679 errorno = errno; 1091 const_iv (FS_IOC_SETFLAGS)
1092 const_iv (FS_IOC_GETVERSION)
1093 const_iv (FS_IOC_SETVERSION)
1094 const_iv (FS_IOC_FIEMAP)
1095 const_iv (FS_IOC_FSGETXATTR)
1096 const_iv (FS_IOC_FSSETXATTR)
1097 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1098 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1099 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
680 1100
681 if (e) 1101 const_iv (FS_KEY_DESCRIPTOR_SIZE)
682 {
683 *res = ent;
684 strcpy (ent->d_name, e->d_name);
685 }
686 else
687 *res = 0;
688 1102
689 pthread_mutex_unlock (&readdirlock); 1103 const_iv (FS_SECRM_FL)
1104 const_iv (FS_UNRM_FL)
1105 const_iv (FS_COMPR_FL)
1106 const_iv (FS_SYNC_FL)
1107 const_iv (FS_IMMUTABLE_FL)
1108 const_iv (FS_APPEND_FL)
1109 const_iv (FS_NODUMP_FL)
1110 const_iv (FS_NOATIME_FL)
1111 const_iv (FS_DIRTY_FL)
1112 const_iv (FS_COMPRBLK_FL)
1113 const_iv (FS_NOCOMP_FL)
1114 const_iv (FS_ENCRYPT_FL)
1115 const_iv (FS_BTREE_FL)
1116 const_iv (FS_INDEX_FL)
1117 const_iv (FS_JOURNAL_DATA_FL)
1118 const_iv (FS_NOTAIL_FL)
1119 const_iv (FS_DIRSYNC_FL)
1120 const_iv (FS_TOPDIR_FL)
1121 const_iv (FS_FL_USER_MODIFIABLE)
690 1122
691 errno = errorno; 1123 const_iv (FS_XFLAG_REALTIME)
692 return e ? 0 : -1; 1124 const_iv (FS_XFLAG_PREALLOC)
693} 1125 const_iv (FS_XFLAG_IMMUTABLE)
694#endif 1126 const_iv (FS_XFLAG_APPEND)
1127 const_iv (FS_XFLAG_SYNC)
1128 const_iv (FS_XFLAG_NOATIME)
1129 const_iv (FS_XFLAG_NODUMP)
1130 const_iv (FS_XFLAG_RTINHERIT)
1131 const_iv (FS_XFLAG_PROJINHERIT)
1132 const_iv (FS_XFLAG_NOSYMLINKS)
1133 const_iv (FS_XFLAG_EXTSIZE)
1134 const_iv (FS_XFLAG_EXTSZINHERIT)
1135 const_iv (FS_XFLAG_NODEFRAG)
1136 const_iv (FS_XFLAG_FILESTREAM)
1137 const_iv (FS_XFLAG_DAX)
1138 const_iv (FS_XFLAG_HASATTR)
695 1139
696/* sendfile always needs emulation */ 1140 const_iv (FIEMAP_FLAG_SYNC)
697static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1141 const_iv (FIEMAP_FLAG_XATTR)
698{ 1142 const_iv (FIEMAP_FLAGS_COMPAT)
699 ssize_t res; 1143 const_iv (FIEMAP_EXTENT_LAST)
1144 const_iv (FIEMAP_EXTENT_UNKNOWN)
1145 const_iv (FIEMAP_EXTENT_DELALLOC)
1146 const_iv (FIEMAP_EXTENT_ENCODED)
1147 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1148 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1149 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1150 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1151 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1152 const_iv (FIEMAP_EXTENT_MERGED)
1153 const_iv (FIEMAP_EXTENT_SHARED)
700 1154
701 if (!count) 1155 const_iv (SPLICE_F_MOVE)
702 return 0; 1156 const_iv (SPLICE_F_NONBLOCK)
1157 const_iv (SPLICE_F_MORE)
1158 const_iv (SPLICE_F_GIFT)
703 1159
704#if HAVE_SENDFILE 1160 /* these are libeio constants, and are independent of gendef0 */
705# if __linux 1161 const_eio (SEEK_SET)
706 res = sendfile (ofd, ifd, &offset, count); 1162 const_eio (SEEK_CUR)
1163 const_eio (SEEK_END)
707 1164
708# elif __freebsd 1165 const_eio (MCL_FUTURE)
709 /* 1166 const_eio (MCL_CURRENT)
710 * Of course, the freebsd sendfile is a dire hack with no thoughts
711 * wasted on making it similar to other I/O functions.
712 */
713 {
714 off_t sbytes;
715 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
716 1167
717 if (res < 0 && sbytes) 1168 const_eio (MS_ASYNC)
718 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1169 const_eio (MS_INVALIDATE)
719 res = sbytes; 1170 const_eio (MS_SYNC)
1171
1172 const_eio (MT_MODIFY)
1173
1174 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1175 const_eio (SYNC_FILE_RANGE_WRITE)
1176 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1177
1178 const_eio (FALLOC_FL_KEEP_SIZE)
1179 const_eio (FALLOC_FL_PUNCH_HOLE)
1180 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1181 const_eio (FALLOC_FL_ZERO_RANGE)
1182 const_eio (FALLOC_FL_INSERT_RANGE)
1183 const_eio (FALLOC_FL_UNSHARE_RANGE)
1184
1185 const_eio (RENAME_NOREPLACE)
1186 const_eio (RENAME_EXCHANGE)
1187 const_eio (RENAME_WHITEOUT)
1188
1189 const_eio (READDIR_DENTS)
1190 const_eio (READDIR_DIRS_FIRST)
1191 const_eio (READDIR_STAT_ORDER)
1192 const_eio (READDIR_FOUND_UNKNOWN)
1193
1194 const_eio (DT_UNKNOWN)
1195 const_eio (DT_FIFO)
1196 const_eio (DT_CHR)
1197 const_eio (DT_DIR)
1198 const_eio (DT_BLK)
1199 const_eio (DT_REG)
1200 const_eio (DT_LNK)
1201 const_eio (DT_SOCK)
1202 const_eio (DT_WHT)
720 } 1203 };
721 1204
722# elif __hpux 1205 aio_stash = gv_stashpv ("IO::AIO" , 1);
723 res = sendfile (ofd, ifd, offset, count, 0, 0); 1206 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1207 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1208 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
724 1209
725# elif __solaris 1210 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
726 { 1211 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
727 struct sendfilevec vec;
728 size_t sbytes;
729 1212
730 vec.sfv_fd = ifd; 1213 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
731 vec.sfv_flag = 0;
732 vec.sfv_off = offset;
733 vec.sfv_len = count;
734 1214
735 res = sendfilev (ofd, &vec, 1, &sbytes); 1215 reinit ();
1216}
736 1217
737 if (res < 0 && sbytes) 1218void
1219reinit ()
1220 PROTOTYPE:
1221
1222void
1223max_poll_reqs (unsigned int nreqs)
1224 PROTOTYPE: $
1225 CODE:
1226 eio_set_max_poll_reqs (nreqs);
1227
1228void
1229max_poll_time (double nseconds)
1230 PROTOTYPE: $
1231 CODE:
1232 eio_set_max_poll_time (nseconds);
1233
1234void
1235min_parallel (unsigned int nthreads)
1236 PROTOTYPE: $
1237 CODE:
1238 eio_set_min_parallel (nthreads);
1239
1240void
1241max_parallel (unsigned int nthreads)
1242 PROTOTYPE: $
1243 CODE:
1244 eio_set_max_parallel (nthreads);
1245
1246void
1247max_idle (unsigned int nthreads)
1248 PROTOTYPE: $
1249 CODE:
1250 eio_set_max_idle (nthreads);
1251
1252void
1253idle_timeout (unsigned int seconds)
1254 PROTOTYPE: $
1255 CODE:
1256 eio_set_idle_timeout (seconds);
1257
1258void
1259max_outstanding (unsigned int maxreqs)
1260 PROTOTYPE: $
1261 CODE:
1262 max_outstanding = maxreqs;
1263
1264void
1265aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1266 PPCODE:
1267{
1268 dREQ;
1269
1270 req->type = EIO_WD_OPEN;
1271 req_set_path1 (req, pathname);
1272
1273 REQ_SEND;
1274}
1275
1276void
1277aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1278 PPCODE:
1279{
1280 dREQ;
1281
1282 req->type = EIO_OPEN;
1283 req_set_path1 (req, pathname);
1284 req->int1 = flags;
1285 req->int2 = mode;
1286
1287 REQ_SEND;
1288}
1289
1290void
1291aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1292 ALIAS:
1293 aio_fsync = EIO_FSYNC
1294 aio_fdatasync = EIO_FDATASYNC
1295 aio_syncfs = EIO_SYNCFS
1296 PPCODE:
1297{
1298 int fd = s_fileno_croak (fh, 0);
1299 dREQ;
1300
1301 req->type = ix;
1302 req->sv1 = newSVsv (fh);
1303 req->int1 = fd;
1304
1305 REQ_SEND;
1306}
1307
1308void
1309aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1310 PPCODE:
1311{
1312 int fd = s_fileno_croak (fh, 0);
1313 dREQ;
1314
1315 req->type = EIO_SYNC_FILE_RANGE;
1316 req->sv1 = newSVsv (fh);
1317 req->int1 = fd;
1318 req->offs = offset;
738 res = sbytes; 1319 req->size = nbytes;
739 } 1320 req->int2 = flags;
740 1321
741# endif 1322 REQ_SEND;
1323}
1324
1325void
1326aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1327 PPCODE:
1328{
1329 int fd = s_fileno_croak (fh, 0);
1330 dREQ;
1331
1332 req->type = EIO_FALLOCATE;
1333 req->sv1 = newSVsv (fh);
1334 req->int1 = fd;
1335 req->int2 = mode;
1336 req->offs = offset;
1337 req->size = len;
1338
1339 REQ_SEND;
1340}
1341
1342void
1343aio_close (SV *fh, SV *callback = &PL_sv_undef)
1344 PPCODE:
1345{
1346 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1347 int fd = s_fileno_croak (fh, 0);
1348 dREQ;
1349
1350 if (expect_false (close_fd < 0))
1351 {
1352 int pipefd [2];
1353
1354 if (
1355#ifdef _WIN32
1356 _pipe (pipefd, 1, _O_BINARY) < 0
742#else 1357#else
743 res = -1; 1358 pipe (pipefd) < 0
744 errno = ENOSYS; 1359 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
745#endif 1360#endif
746 1361 || close (pipefd [1]) < 0
747 if (res < 0
748 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
749#if __solaris
750 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
751#endif
752 )
753 )
754 {
755 /* emulate sendfile. this is a major pain in the ass */
756 dBUF;
757
758 res = 0;
759
760 while (count)
761 {
762 ssize_t cnt;
763
764 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
765
766 if (cnt <= 0)
767 { 1362 )
768 if (cnt && !res) res = -1; 1363 abort (); /*D*/
769 break;
770 }
771 1364
772 cnt = write (ofd, aio_buf, cnt); 1365 close_fd = pipefd [0];
773
774 if (cnt <= 0)
775 {
776 if (cnt && !res) res = -1;
777 break;
778 }
779
780 offset += cnt;
781 res += cnt;
782 count -= cnt;
783 }
784
785 fBUF;
786 }
787
788 return res;
789}
790
791/* read a full directory */
792static int scandir_ (const char *path, void **namesp)
793{
794 DIR *dirp;
795 union
796 {
797 struct dirent d;
798 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
799 } *u;
800 struct dirent *entp;
801 char *name, *names;
802 int memlen = 4096;
803 int memofs = 0;
804 int res = 0;
805 int errorno;
806
807 dirp = opendir (path);
808 if (!dirp)
809 return -1;
810
811 u = malloc (sizeof (*u));
812 names = malloc (memlen);
813
814 if (u && names)
815 for (;;)
816 {
817 errno = 0;
818 readdir_r (dirp, &u->d, &entp);
819
820 if (!entp)
821 break;
822
823 name = entp->d_name;
824
825 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
826 {
827 int len = strlen (name) + 1;
828
829 res++;
830
831 while (memofs + len > memlen)
832 {
833 memlen *= 2;
834 names = realloc (names, memlen);
835 if (!names)
836 break;
837 }
838
839 memcpy (names + memofs, name, len);
840 memofs += len;
841 } 1366 }
842 }
843 1367
844 errorno = errno; 1368 req->type = EIO_DUP2;
845 free (u); 1369 req->int1 = close_fd;
846 closedir (dirp); 1370 req->sv2 = newSVsv (fh);
1371 req->int2 = fd;
847 1372
848 if (errorno) 1373 REQ_SEND;
849 {
850 free (names);
851 errno = errorno;
852 res = -1;
853 }
854
855 *namesp = (void *)names;
856 return res;
857} 1374}
858 1375
859/*****************************************************************************/
860
861static void *aio_proc (void *thr_arg)
862{
863 aio_req req;
864 int type;
865
866 do
867 {
868 pthread_mutex_lock (&reqlock);
869
870 for (;;)
871 {
872 req = reqq_shift (&req_queue);
873
874 if (req)
875 break;
876
877 pthread_cond_wait (&reqwait, &reqlock);
878 }
879
880 pthread_mutex_unlock (&reqlock);
881
882 errno = 0; /* strictly unnecessary */
883 type = req->type; /* remember type for QUIT check */
884
885 if (!(req->flags & FLAG_CANCELLED))
886 switch (type)
887 {
888 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
889 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
890
891 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
892 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
893
894 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
895 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
896 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
897
898 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
899 case REQ_CLOSE: req->result = close (req->fd); break;
900 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
901 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
902 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
903 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
904 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
905
906 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
907 case REQ_FSYNC: req->result = fsync (req->fd); break;
908 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
909
910 case REQ_SLEEP:
911 {
912 struct timeval tv;
913
914 tv.tv_sec = req->fd;
915 tv.tv_usec = req->fd2;
916
917 req->result = select (0, 0, 0, 0, &tv);
918 }
919
920 case REQ_GROUP:
921 case REQ_NOP:
922 case REQ_QUIT:
923 break;
924
925 default:
926 req->result = ENOSYS;
927 break;
928 }
929
930 req->errorno = errno;
931
932 pthread_mutex_lock (&reslock);
933
934 if (!reqq_push (&res_queue, req))
935 /* write a dummy byte to the pipe so fh becomes ready */
936 write (respipe [1], &respipe, 1);
937
938 pthread_mutex_unlock (&reslock);
939 }
940 while (type != REQ_QUIT);
941
942 return 0;
943}
944
945/*****************************************************************************/
946
947static void atfork_prepare (void)
948{
949 pthread_mutex_lock (&reqlock);
950 pthread_mutex_lock (&reslock);
951#if !HAVE_PREADWRITE
952 pthread_mutex_lock (&preadwritelock);
953#endif
954#if !HAVE_READDIR_R
955 pthread_mutex_lock (&readdirlock);
956#endif
957}
958
959static void atfork_parent (void)
960{
961#if !HAVE_READDIR_R
962 pthread_mutex_unlock (&readdirlock);
963#endif
964#if !HAVE_PREADWRITE
965 pthread_mutex_unlock (&preadwritelock);
966#endif
967 pthread_mutex_unlock (&reslock);
968 pthread_mutex_unlock (&reqlock);
969}
970
971static void atfork_child (void)
972{
973 aio_req prv;
974
975 started = 0;
976
977 while (prv = reqq_shift (&req_queue))
978 req_free (prv);
979
980 while (prv = reqq_shift (&res_queue))
981 req_free (prv);
982
983 close (respipe [0]);
984 close (respipe [1]);
985 create_pipe ();
986
987 atfork_parent ();
988}
989
990#define dREQ \
991 aio_req req; \
992 int req_pri = next_pri; \
993 next_pri = DEFAULT_PRI + PRI_BIAS; \
994 \
995 if (SvOK (callback) && !SvROK (callback)) \
996 croak ("callback must be undef or of reference type"); \
997 \
998 Newz (0, req, 1, aio_cb); \
999 if (!req) \
1000 croak ("out of memory during aio_req allocation"); \
1001 \
1002 req->callback = newSVsv (callback); \
1003 req->pri = req_pri
1004
1005#define REQ_SEND \
1006 req_send (req); \
1007 \
1008 if (GIMME_V != G_VOID) \
1009 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1010
1011MODULE = IO::AIO PACKAGE = IO::AIO
1012
1013PROTOTYPES: ENABLE
1014
1015BOOT:
1016{
1017 HV *stash = gv_stashpv ("IO::AIO", 1);
1018 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1019 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1020 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1021
1022 create_pipe ();
1023 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1024}
1025
1026void 1376void
1027min_parallel (nthreads) 1377aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1028 int nthreads
1029 PROTOTYPE: $
1030
1031void
1032max_parallel (nthreads)
1033 int nthreads
1034 PROTOTYPE: $
1035
1036int
1037max_outstanding (nreqs)
1038 int nreqs
1039 PROTOTYPE: $
1040 CODE: 1378 PPCODE:
1041 RETVAL = max_outstanding;
1042 max_outstanding = nreqs;
1043
1044void
1045aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1046 SV * pathname
1047 int flags
1048 int mode
1049 SV * callback
1050 PROTOTYPE: $$$;$
1051 PPCODE:
1052{ 1379{
1380 int fd = s_fileno_croak (fh, 0);
1053 dREQ; 1381 dREQ;
1054 1382
1055 req->type = REQ_OPEN; 1383 req->type = EIO_SEEK;
1056 req->data = newSVsv (pathname); 1384 req->sv1 = newSVsv (fh);
1057 req->dataptr = SvPVbyte_nolen (req->data); 1385 req->int1 = fd;
1058 req->fd = flags; 1386 req->offs = SvVAL64 (offset);
1059 req->mode = mode; 1387 req->int2 = whence;
1060 1388
1061 REQ_SEND; 1389 REQ_SEND;
1062} 1390}
1063 1391
1064void 1392void
1065aio_close (fh,callback=&PL_sv_undef) 1393aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1066 SV * fh
1067 SV * callback
1068 PROTOTYPE: $;$
1069 ALIAS: 1394 ALIAS:
1070 aio_close = REQ_CLOSE
1071 aio_fsync = REQ_FSYNC
1072 aio_fdatasync = REQ_FDATASYNC
1073 PPCODE:
1074{
1075 dREQ;
1076
1077 req->type = ix;
1078 req->fh = newSVsv (fh);
1079 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1080
1081 REQ_SEND (req);
1082}
1083
1084void
1085aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1086 SV * fh
1087 UV offset
1088 UV length
1089 SV * data
1090 UV dataoffset
1091 SV * callback
1092 ALIAS:
1093 aio_read = REQ_READ 1395 aio_read = EIO_READ
1094 aio_write = REQ_WRITE 1396 aio_write = EIO_WRITE
1095 PROTOTYPE: $$$$$;$
1096 PPCODE: 1397 PPCODE:
1097{ 1398{
1098 aio_req req;
1099 STRLEN svlen; 1399 STRLEN svlen;
1400 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1100 char *svptr = SvPVbyte (data, svlen); 1401 char *svptr = SvPVbyte (data, svlen);
1101 1402 UV len = SvUV (length);
1102 SvUPGRADE (data, SVt_PV);
1103 SvPOK_on (data);
1104 1403
1105 if (dataoffset < 0) 1404 if (dataoffset < 0)
1106 dataoffset += svlen; 1405 dataoffset += svlen;
1107 1406
1108 if (dataoffset < 0 || dataoffset > svlen) 1407 if (dataoffset < 0 || dataoffset > svlen)
1109 croak ("data offset outside of string"); 1408 croak ("dataoffset outside of data scalar");
1110 1409
1111 if (ix == REQ_WRITE) 1410 if (ix == EIO_WRITE)
1112 { 1411 {
1113 /* write: check length and adjust. */ 1412 /* write: check length and adjust. */
1114 if (length < 0 || length + dataoffset > svlen) 1413 if (!SvOK (length) || len + dataoffset > svlen)
1115 length = svlen - dataoffset; 1414 len = svlen - dataoffset;
1116 } 1415 }
1117 else 1416 else
1118 { 1417 {
1119 /* read: grow scalar as necessary */ 1418 /* read: check type and grow scalar as necessary */
1419 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1120 svptr = SvGROW (data, length + dataoffset); 1420 svptr = sv_grow (data, len + dataoffset);
1421 else if (SvCUR (data) < len + dataoffset)
1422 croak ("length + dataoffset outside of scalar, and cannot grow");
1121 } 1423 }
1122
1123 if (length < 0)
1124 croak ("length must not be negative");
1125 1424
1126 { 1425 {
1127 dREQ; 1426 dREQ;
1128 1427
1129 req->type = ix; 1428 req->type = ix;
1130 req->fh = newSVsv (fh); 1429 req->sv1 = newSVsv (fh);
1131 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1430 req->int1 = fd;
1132 : IoOFP (sv_2io (fh))); 1431 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1133 req->offset = offset; 1432 req->size = len;
1134 req->length = length;
1135 req->data = SvREFCNT_inc (data); 1433 req->sv2 = SvREFCNT_inc (data);
1136 req->dataptr = (char *)svptr + dataoffset; 1434 req->ptr2 = (char *)svptr + dataoffset;
1435 req->stroffset = dataoffset;
1137 1436
1138 if (!SvREADONLY (data)) 1437 if (!SvREADONLY (data))
1139 { 1438 {
1140 SvREADONLY_on (data); 1439 SvREADONLY_on (data);
1141 req->data2ptr = (void *)data; 1440 req->flags |= FLAG_SV2_RO_OFF;
1142 } 1441 }
1143 1442
1144 REQ_SEND; 1443 REQ_SEND;
1145 } 1444 }
1146} 1445}
1147 1446
1148void 1447void
1149aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1448aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1150 SV * out_fh 1449 ALIAS:
1151 SV * in_fh 1450 aio_ioctl = EIO_IOCTL
1152 UV in_offset 1451 aio_fcntl = EIO_FCNTL
1153 UV length
1154 SV * callback
1155 PROTOTYPE: $$$$;$
1156 PPCODE: 1452 PPCODE:
1157{ 1453{
1158 dREQ; 1454 int fd = s_fileno_croak (fh, 0);
1455 char *svptr;
1159 1456
1160 req->type = REQ_SENDFILE; 1457 if (SvPOK (arg) || !SvNIOK (arg))
1161 req->fh = newSVsv (out_fh);
1162 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1163 req->fh2 = newSVsv (in_fh);
1164 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1165 req->offset = in_offset;
1166 req->length = length;
1167
1168 REQ_SEND;
1169}
1170
1171void
1172aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1173 SV * fh
1174 UV offset
1175 IV length
1176 SV * callback
1177 PROTOTYPE: $$$;$
1178 PPCODE:
1179{
1180 dREQ;
1181
1182 req->type = REQ_READAHEAD;
1183 req->fh = newSVsv (fh);
1184 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1185 req->offset = offset;
1186 req->length = length;
1187
1188 REQ_SEND;
1189}
1190
1191void
1192aio_stat (fh_or_path,callback=&PL_sv_undef)
1193 SV * fh_or_path
1194 SV * callback
1195 ALIAS:
1196 aio_stat = REQ_STAT
1197 aio_lstat = REQ_LSTAT
1198 PPCODE:
1199{
1200 dREQ;
1201
1202 New (0, req->statdata, 1, Stat_t);
1203 if (!req->statdata)
1204 { 1458 {
1205 req_free (req); 1459 STRLEN svlen;
1206 croak ("out of memory during aio_req->statdata allocation"); 1460 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1207 } 1461#ifdef IOCPARM_LEN
1462 STRLEN need = IOCPARM_LEN (request);
1463#else
1464 STRLEN need = 256;
1465#endif
1208 1466
1209 if (SvPOK (fh_or_path)) 1467 if (svlen < need)
1210 { 1468 svptr = SvGROW (arg, need);
1211 req->type = ix;
1212 req->data = newSVsv (fh_or_path);
1213 req->dataptr = SvPVbyte_nolen (req->data);
1214 } 1469 }
1215 else 1470 else
1471 svptr = (char *)SvIV (arg);
1472
1216 { 1473 {
1474 dREQ;
1475
1217 req->type = REQ_FSTAT; 1476 req->type = ix;
1218 req->fh = newSVsv (fh_or_path); 1477 req->sv1 = newSVsv (fh);
1219 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1478 req->int1 = fd;
1479 req->int2 = (long)request;
1480 req->sv2 = SvREFCNT_inc (arg);
1481 req->ptr2 = svptr;
1482
1483 REQ_SEND;
1220 } 1484 }
1485}
1486
1487void
1488aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1489 ALIAS:
1490 aio_readlink = EIO_READLINK
1491 aio_realpath = EIO_REALPATH
1492 PPCODE:
1493{
1494 dREQ;
1495
1496 req->type = ix;
1497 req_set_path1 (req, pathname);
1221 1498
1222 REQ_SEND; 1499 REQ_SEND;
1223} 1500}
1224 1501
1225void 1502void
1226aio_unlink (pathname,callback=&PL_sv_undef) 1503aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1227 SV * pathname 1504 PPCODE:
1228 SV * callback 1505{
1506 int ifd = s_fileno_croak (in_fh , 0);
1507 int ofd = s_fileno_croak (out_fh, 1);
1508 dREQ;
1509
1510 req->type = EIO_SENDFILE;
1511 req->sv1 = newSVsv (out_fh);
1512 req->int1 = ofd;
1513 req->sv2 = newSVsv (in_fh);
1514 req->int2 = ifd;
1515 req->offs = in_offset;
1516 req->size = length;
1517
1518 REQ_SEND;
1519}
1520
1521void
1522aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1523 PPCODE:
1524{
1525 int fd = s_fileno_croak (fh, 0);
1526 dREQ;
1527
1528 req->type = EIO_READAHEAD;
1529 req->sv1 = newSVsv (fh);
1530 req->int1 = fd;
1531 req->offs = offset;
1532 req->size = length;
1533
1534 REQ_SEND;
1535}
1536
1537void
1538aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1229 ALIAS: 1539 ALIAS:
1540 aio_stat = EIO_STAT
1541 aio_lstat = EIO_LSTAT
1542 aio_statvfs = EIO_STATVFS
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1548
1549 REQ_SEND;
1550}
1551
1552UV
1553major (UV dev)
1554 ALIAS:
1555 minor = 1
1556 CODE:
1557 RETVAL = ix ? minor (dev) : major (dev);
1558 OUTPUT:
1559 RETVAL
1560
1561UV
1562makedev (UV maj, UV min)
1563 CODE:
1564 RETVAL = makedev (maj, min);
1565 OUTPUT:
1566 RETVAL
1567
1568void
1569aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1570 PPCODE:
1571{
1572 dREQ;
1573
1574 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1575 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1576 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1577
1578 REQ_SEND;
1579}
1580
1581void
1582aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1583 PPCODE:
1584{
1585 dREQ;
1586
1587 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1588 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1589
1590 REQ_SEND;
1591}
1592
1593void
1594aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1595 PPCODE:
1596{
1597 dREQ;
1598
1599 req->int2 = mode;
1600 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1601
1602 REQ_SEND;
1603}
1604
1605void
1606aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1607 PPCODE:
1608{
1609 dREQ;
1610
1611 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1612 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1613 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1620 PPCODE:
1621{
1622 dREQ;
1623
1624 req->type = EIO_READDIR;
1625 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1626
1627 if (flags & EIO_READDIR_DENTS)
1628 req->int1 |= EIO_READDIR_CUSTOM2;
1629
1630 req_set_path1 (req, pathname);
1631
1632 REQ_SEND;
1633}
1634
1635void
1636aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1637 PPCODE:
1638{
1639 dREQ;
1640
1641 req->type = EIO_MKDIR;
1642 req->int2 = mode;
1643 req_set_path1 (req, pathname);
1644
1645 REQ_SEND;
1646}
1647
1648void
1649aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1650 ALIAS:
1230 aio_unlink = REQ_UNLINK 1651 aio_unlink = EIO_UNLINK
1231 aio_rmdir = REQ_RMDIR 1652 aio_rmdir = EIO_RMDIR
1232 aio_readdir = REQ_READDIR 1653 aio_readdir = EIO_READDIR
1233 PPCODE: 1654 PPCODE:
1234{ 1655{
1235 dREQ; 1656 dREQ;
1236 1657
1237 req->type = ix; 1658 req->type = ix;
1238 req->data = newSVsv (pathname); 1659 req_set_path1 (req, pathname);
1239 req->dataptr = SvPVbyte_nolen (req->data); 1660
1240
1241 REQ_SEND; 1661 REQ_SEND;
1242} 1662}
1243 1663
1244void 1664void
1245aio_link (oldpath,newpath,callback=&PL_sv_undef) 1665aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1246 SV * oldpath
1247 SV * newpath
1248 SV * callback
1249 ALIAS: 1666 ALIAS:
1250 aio_link = REQ_LINK 1667 aio_link = EIO_LINK
1251 aio_symlink = REQ_SYMLINK 1668 aio_symlink = EIO_SYMLINK
1252 aio_rename = REQ_RENAME 1669 aio_rename = EIO_RENAME
1253 PPCODE: 1670 PPCODE:
1254{ 1671{
1672 eio_wd wd2 = 0;
1255 dREQ; 1673 dREQ;
1256 1674
1257 req->type = ix; 1675 req->type = ix;
1258 req->fh = newSVsv (oldpath); 1676 req_set_path1 (req, oldpath);
1259 req->data2ptr = SvPVbyte_nolen (req->fh); 1677 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1260 req->data = newSVsv (newpath); 1678 req->int3 = (long)wd2;
1261 req->dataptr = SvPVbyte_nolen (req->data);
1262 1679
1263 REQ_SEND; 1680 REQ_SEND;
1264} 1681}
1265 1682
1266void 1683void
1267aio_sleep (delay,callback=&PL_sv_undef) 1684aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1268 double delay
1269 SV * callback
1270 PPCODE: 1685 PPCODE:
1271{ 1686{
1687 eio_wd wd2 = 0;
1272 dREQ; 1688 dREQ;
1273 1689
1274 req->type = REQ_SLEEP; 1690 req->type = EIO_RENAME;
1275 req->fd = delay < 0. ? 0 : delay; 1691 req_set_path1 (req, oldpath);
1276 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1692 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1277 1693 req->int2 = flags;
1694 req->int3 = (long)wd2;
1695
1278 REQ_SEND; 1696 REQ_SEND;
1279} 1697}
1280 1698
1281void 1699void
1282aio_group (callback=&PL_sv_undef) 1700aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1283 SV * callback 1701 PPCODE:
1284 PROTOTYPE: ;$ 1702{
1703 dREQ;
1704
1705 req->type = EIO_MKNOD;
1706 req->int2 = (mode_t)mode;
1707 req->offs = dev;
1708 req_set_path1 (req, pathname);
1709
1710 REQ_SEND;
1711}
1712
1713void
1714aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1715 ALIAS:
1716 aio_mtouch = EIO_MTOUCH
1717 aio_msync = EIO_MSYNC
1285 PPCODE: 1718 PPCODE:
1286{ 1719{
1720 STRLEN svlen;
1721 char *svptr = SvPVbyte (data, svlen);
1722 UV len = SvUV (length);
1723
1724 if (flags < 0)
1725 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1726
1727 if (offset < 0)
1728 offset += svlen;
1729
1730 if (offset < 0 || offset > svlen)
1731 croak ("offset outside of scalar");
1732
1733 if (!SvOK (length) || len + offset > svlen)
1734 len = svlen - offset;
1735
1736 {
1737 dREQ;
1738
1739 req->type = ix;
1740 req->sv2 = SvREFCNT_inc (data);
1741 req->ptr2 = (char *)svptr + offset;
1742 req->size = len;
1743 req->int1 = flags;
1744
1745 REQ_SEND;
1746 }
1747}
1748
1749void
1750aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1751 PPCODE:
1752{
1753 STRLEN svlen;
1754 char *svptr = SvPVbyte (data, svlen);
1755 UV len = SvUV (length);
1756
1757 if (offset < 0)
1758 offset += svlen;
1759
1760 if (offset < 0 || offset > svlen)
1761 croak ("offset outside of scalar");
1762
1763 if (!SvOK (length) || len + offset > svlen)
1764 len = svlen - offset;
1765
1766 {
1767 dREQ;
1768
1769 req->type = EIO_MLOCK;
1770 req->sv2 = SvREFCNT_inc (data);
1771 req->ptr2 = (char *)svptr + offset;
1772 req->size = len;
1773
1774 REQ_SEND;
1775 }
1776}
1777
1778void
1779aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1780 PPCODE:
1781{
1782 dREQ;
1783
1784 req->type = EIO_MLOCKALL;
1785 req->int1 = flags;
1786
1787 REQ_SEND;
1788}
1789
1790void
1791aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1792 PPCODE:
1793{
1794 int fd = s_fileno_croak (fh, 0);
1287 dREQ; 1795 dREQ;
1288 1796
1289 req->type = REQ_GROUP; 1797 req->type = EIO_CUSTOM;
1290 req_send (req); 1798 req->sv1 = newSVsv (fh);
1799 req->int1 = fd;
1291 1800
1292 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1801 req->feed = fiemap;
1293} 1802#if HAVE_FIEMAP
1803 /* keep our fingers crossed that the next two types are 64 bit */
1804 req->offs = start;
1805 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1806 req->int2 = flags;
1807 req->int3 = SvOK (count) ? SvIV (count) : -1;
1808#endif
1294 1809
1810 REQ_SEND;
1811}
1812
1295void 1813void
1296aio_nop (callback=&PL_sv_undef) 1814aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1297 SV * callback 1815 PPCODE:
1816{
1817 char *svptr = 0;
1818
1819 sv_clear_foreign (data);
1820
1821 if (length) /* known length, directly read into scalar */
1822 {
1823 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1824 svptr = sv_grow (data, length);
1825 else if (SvCUR (data) < length)
1826 croak ("length outside of scalar, and cannot grow");
1827 else
1828 svptr = SvPVbyte_nolen (data);
1829 }
1830
1831 {
1832 dREQ;
1833
1834 req->type = EIO_SLURP;
1835 req_set_path1 (req, pathname);
1836 req->offs = offset;
1837 req->size = length;
1838 req->sv2 = SvREFCNT_inc (data);
1839 req->ptr2 = svptr;
1840
1841 if (!SvREADONLY (data))
1842 {
1843 SvREADONLY_on (data);
1844 req->flags |= FLAG_SV2_RO_OFF;
1845 }
1846
1847 REQ_SEND;
1848 }
1849}
1850
1851void
1852aio_busy (double delay, SV *callback = &PL_sv_undef)
1298 PPCODE: 1853 PPCODE:
1299{ 1854{
1300 dREQ; 1855 dREQ;
1301 1856
1302 req->type = REQ_NOP; 1857 req->type = EIO_BUSY;
1858 req->nv1 = delay < 0. ? 0. : delay;
1303 1859
1304 REQ_SEND; 1860 REQ_SEND;
1305} 1861}
1306 1862
1307void 1863void
1308aioreq_pri (int pri = DEFAULT_PRI) 1864aio_group (SV *callback = &PL_sv_undef)
1309 CODE: 1865 PPCODE:
1866{
1867 dREQ;
1868
1869 req->type = EIO_GROUP;
1870
1871 PUTBACK;
1872 req_submit (req);
1873 SPAGAIN;
1874
1875 XPUSHs (req_sv (req, aio_grp_stash));
1876}
1877
1878void
1879aio_nop (SV *callback = &PL_sv_undef)
1880 ALIAS:
1881 aio_nop = EIO_NOP
1882 aio_sync = EIO_SYNC
1883 PPCODE:
1884{
1885 dREQ;
1886
1887 req->type = ix;
1888
1889 REQ_SEND;
1890}
1891
1892int
1893aioreq_pri (int pri = NO_INIT)
1894 CODE:
1895 RETVAL = next_pri;
1896 if (items > 0)
1897 {
1310 if (pri < PRI_MIN) pri = PRI_MIN; 1898 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1311 if (pri > PRI_MAX) pri = PRI_MAX; 1899 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1312 next_pri = pri + PRI_BIAS; 1900 next_pri = pri;
1901 }
1902 OUTPUT:
1903 RETVAL
1313 1904
1314void 1905void
1315aioreq_nice (int nice = 0) 1906aioreq_nice (int nice = 0)
1316 CODE: 1907 CODE:
1317 nice = next_pri - nice; 1908 nice = next_pri - nice;
1318 if (nice < PRI_MIN) nice = PRI_MIN; 1909 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1319 if (nice > PRI_MAX) nice = PRI_MAX; 1910 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1320 next_pri = nice + PRI_BIAS; 1911 next_pri = nice;
1321 1912
1322void 1913void
1323flush () 1914flush ()
1324 PROTOTYPE:
1325 CODE: 1915 CODE:
1326 while (nreqs) 1916 while (eio_nreqs ())
1327 { 1917 {
1328 poll_wait (); 1918 poll_wait ();
1329 poll_cb (); 1919 poll_cb ();
1330 } 1920 }
1331 1921
1332void 1922int
1333poll() 1923poll ()
1334 PROTOTYPE:
1335 CODE: 1924 CODE:
1336 if (nreqs)
1337 {
1338 poll_wait (); 1925 poll_wait ();
1339 poll_cb (); 1926 RETVAL = poll_cb ();
1340 }
1341
1342int
1343poll_fileno()
1344 PROTOTYPE:
1345 CODE:
1346 RETVAL = respipe [0];
1347 OUTPUT: 1927 OUTPUT:
1348 RETVAL 1928 RETVAL
1349 1929
1350int 1930int
1931poll_fileno ()
1932 CODE:
1933 RETVAL = s_epipe_fd (&respipe);
1934 OUTPUT:
1935 RETVAL
1936
1937int
1351poll_cb(...) 1938poll_cb (...)
1352 PROTOTYPE: 1939 PROTOTYPE:
1353 CODE: 1940 CODE:
1354 RETVAL = poll_cb (); 1941 RETVAL = poll_cb ();
1355 OUTPUT: 1942 OUTPUT:
1356 RETVAL 1943 RETVAL
1357 1944
1358void 1945void
1359poll_wait() 1946poll_wait ()
1360 PROTOTYPE:
1361 CODE: 1947 CODE:
1362 if (nreqs)
1363 poll_wait (); 1948 poll_wait ();
1364 1949
1365int 1950int
1366nreqs() 1951nreqs ()
1367 PROTOTYPE:
1368 CODE: 1952 CODE:
1369 RETVAL = nreqs; 1953 RETVAL = eio_nreqs ();
1370 OUTPUT: 1954 OUTPUT:
1371 RETVAL 1955 RETVAL
1372 1956
1957int
1958nready ()
1959 CODE:
1960 RETVAL = eio_nready ();
1961 OUTPUT:
1962 RETVAL
1963
1964int
1965npending ()
1966 CODE:
1967 RETVAL = eio_npending ();
1968 OUTPUT:
1969 RETVAL
1970
1971int
1972nthreads ()
1973 CODE:
1974 RETVAL = eio_nthreads ();
1975 OUTPUT:
1976 RETVAL
1977
1978int
1979fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1980 CODE:
1981 RETVAL = posix_fadvise (fh, offset, length, advice);
1982 OUTPUT:
1983 RETVAL
1984
1985IV
1986sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1987 CODE:
1988 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1989 OUTPUT:
1990 RETVAL
1991
1992void
1993mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1994 PPCODE:
1995 sv_clear_foreign (scalar);
1996{
1997 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1998 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1999 if (addr == (void *)-1)
2000 XSRETURN_NO;
2001
2002 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2003
2004 if (!(prot & PROT_WRITE))
2005 SvREADONLY_on (scalar);
2006
2007 XSRETURN_YES;
2008}
2009
2010void
2011munmap (SV *scalar)
2012 CODE:
2013 sv_clear_foreign (scalar);
2014
2015int
2016madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2017 ALIAS:
2018 mprotect = 1
2019 CODE:
2020{
2021 STRLEN svlen;
2022 void *addr = SvPVbyte (scalar, svlen);
2023 STRLEN len = SvUV (length);
2024
2025 if (offset < 0)
2026 offset += svlen;
2027
2028 if (offset < 0 || offset > svlen)
2029 croak ("offset outside of scalar");
2030
2031 if (!SvOK (length) || len + offset > svlen)
2032 len = svlen - offset;
2033
2034 addr = (void *)(((intptr_t)addr) + offset);
2035 eio_page_align (&addr, &len);
2036
2037 switch (ix)
2038 {
2039 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2040 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2041 }
2042}
2043 OUTPUT:
2044 RETVAL
2045
2046int
2047munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2048 CODE:
2049{
2050 STRLEN svlen;
2051 void *addr = SvPVbyte (scalar, svlen);
2052 size_t len = SvUV (length);
2053
2054 if (offset < 0)
2055 offset += svlen;
2056
2057 if (offset < 0 || offset > svlen)
2058 croak ("offset outside of scalar");
2059
2060 if (!SvOK (length) || len + offset > svlen)
2061 len = svlen - offset;
2062
2063 addr = (void *)(((intptr_t)addr) + offset);
2064 eio_page_align (&addr, &len);
2065#if _POSIX_MEMLOCK_RANGE
2066 RETVAL = munlock (addr, len);
2067#else
2068 RETVAL = EIO_ENOSYS ();
2069#endif
2070}
2071 OUTPUT:
2072 RETVAL
2073
2074int
2075munlockall ()
2076 CODE:
2077#if _POSIX_MEMLOCK
2078 munlockall ();
2079#else
2080 RETVAL = EIO_ENOSYS ();
2081#endif
2082 OUTPUT:
2083 RETVAL
2084
2085int
2086splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2087 CODE:
2088{
2089#if HAVE_LINUX_SPLICE
2090 loff_t off_in_, off_out_;
2091 RETVAL = splice (
2092 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2093 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2094 length, flags
2095 );
2096#else
2097 RETVAL = EIO_ENOSYS ();
2098#endif
2099}
2100 OUTPUT:
2101 RETVAL
2102
2103int
2104tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2105 CODE:
2106#if HAVE_LINUX_SPLICE
2107 RETVAL = tee (rfh, wfh, length, flags);
2108#else
2109 RETVAL = EIO_ENOSYS ();
2110#endif
2111 OUTPUT:
2112 RETVAL
2113
2114int
2115pipesize (aio_rfd rfh, int new_size = -1)
2116 PROTOTYPE: $;$
2117 CODE:
2118#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2119 if (new_size >= 0)
2120 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2121 else
2122 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2123#else
2124 errno = ENOSYS;
2125 RETVAL = -1;
2126#endif
2127 OUTPUT:
2128 RETVAL
2129
2130void
2131pipe2 (int flags = 0)
2132 PROTOTYPE: ;$
2133 PPCODE:
2134{
2135 int fd[2];
2136 int res;
2137
2138 if (flags)
2139#if HAVE_PIPE2
2140 res = pipe2 (fd, flags);
2141#else
2142 res = (errno = ENOSYS, -1);
2143#endif
2144 else
2145 res = pipe (fd);
2146
2147 if (!res)
2148 {
2149 EXTEND (SP, 2);
2150 PUSHs (newmortalFH (fd[0], O_RDONLY));
2151 PUSHs (newmortalFH (fd[1], O_WRONLY));
2152 }
2153}
2154
2155UV
2156get_fdlimit ()
2157 CODE:
2158#if HAVE_RLIMITS
2159 struct rlimit rl;
2160 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2161 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2162#endif
2163 XSRETURN_UNDEF;
2164 OUTPUT:
2165 RETVAL
2166
2167void
2168min_fdlimit (UV limit = 0x7fffffffU)
2169 CODE:
2170{
2171#if HAVE_RLIMITS
2172 struct rlimit rl;
2173 rlim_t orig_rlim_max;
2174 UV bit;
2175
2176 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2177 goto fail;
2178
2179 if (rl.rlim_cur == RLIM_INFINITY)
2180 XSRETURN_YES;
2181
2182 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2183
2184 if (rl.rlim_cur < limit)
2185 {
2186 rl.rlim_cur = limit;
2187
2188 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2189 rl.rlim_max = rl.rlim_cur;
2190 }
2191
2192 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2193 XSRETURN_YES;
2194
2195 if (errno == EPERM)
2196 {
2197 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2198 /* our limit overflows a system-wide limit */
2199 /* try an adaptive algorithm, but do not lower the hardlimit */
2200 rl.rlim_max = 0;
2201 for (bit = 0x40000000U; bit; bit >>= 1)
2202 {
2203 rl.rlim_max |= bit;
2204 rl.rlim_cur = rl.rlim_max;
2205
2206 /* nevr decrease the hard limit */
2207 if (rl.rlim_max < orig_rlim_max)
2208 break;
2209
2210 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2211 rl.rlim_max &= ~bit; /* too high, remove bit again */
2212 }
2213
2214 /* now, raise the soft limit to the max permitted */
2215 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2216 {
2217 rl.rlim_cur = rl.rlim_max;
2218 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2219 errno = EPERM;
2220 }
2221 }
2222#endif
2223 fail:
2224 XSRETURN_UNDEF;
2225}
2226
2227void _on_next_submit (SV *cb)
2228 CODE:
2229 SvREFCNT_dec (on_next_submit);
2230 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2231
1373PROTOTYPES: DISABLE 2232PROTOTYPES: DISABLE
2233
2234MODULE = IO::AIO PACKAGE = IO::AIO::WD
2235
2236BOOT:
2237{
2238 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2239 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2240}
2241
2242void
2243DESTROY (SV *self)
2244 CODE:
2245{
2246 aio_wd wd = SvAIO_WD (self);
2247#if HAVE_AT
2248 {
2249 SV *callback = &PL_sv_undef;
2250 dREQ; /* clobbers next_pri :/ */
2251 next_pri = req->pri; /* restore next_pri */
2252 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2253 req->type = EIO_WD_CLOSE;
2254 req->wd = wd;
2255 REQ_SEND;
2256 }
2257#else
2258 eio_wd_close_sync (wd);
2259#endif
2260}
1374 2261
1375MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2262MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1376 2263
1377void 2264void
1378cancel (aio_req_ornot req) 2265cancel (aio_req_ornot req)
1379 CODE: 2266 CODE:
1380 req_cancel (req); 2267 eio_cancel (req);
1381 2268
1382void 2269void
1383cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2270cb (aio_req_ornot req, SV *callback = NO_INIT)
1384 CODE: 2271 PPCODE:
2272{
2273 if (GIMME_V != G_VOID)
2274 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2275
2276 if (items > 1)
2277 {
2278 SV *cb_cv = get_cb (callback);
2279
1385 SvREFCNT_dec (req->callback); 2280 SvREFCNT_dec (req->callback);
1386 req->callback = newSVsv (callback); 2281 req->callback = SvREFCNT_inc (cb_cv);
2282 }
2283}
1387 2284
1388MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2285MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1389 2286
1390void 2287void
1391add (aio_req grp, ...) 2288add (aio_req grp, ...)
1392 PPCODE: 2289 PPCODE:
1393{ 2290{
1394 int i; 2291 int i;
1395 aio_req req;
1396 2292
1397 if (grp->fd == 2) 2293 if (grp->int1 == 2)
1398 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2294 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1399 2295
1400 for (i = 1; i < items; ++i ) 2296 for (i = 1; i < items; ++i )
1401 { 2297 {
2298 aio_req req;
2299
1402 if (GIMME_V != G_VOID) 2300 if (GIMME_V != G_VOID)
1403 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2301 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1404 2302
1405 req = SvAIO_REQ (ST (i)); 2303 req = SvAIO_REQ (ST (i));
1406 2304
1407 if (req) 2305 if (req)
1408 { 2306 eio_grp_add (grp, req);
1409 ++grp->length;
1410 req->grp = grp;
1411
1412 req->grp_prev = 0;
1413 req->grp_next = grp->grp_first;
1414
1415 if (grp->grp_first)
1416 grp->grp_first->grp_prev = req;
1417
1418 grp->grp_first = req;
1419 }
1420 } 2307 }
1421} 2308}
2309
2310void
2311cancel_subs (aio_req_ornot req)
2312 CODE:
2313 req_cancel_subs (req);
1422 2314
1423void 2315void
1424result (aio_req grp, ...) 2316result (aio_req grp, ...)
1425 CODE: 2317 CODE:
1426{ 2318{
1427 int i; 2319 int i;
2320 AV *av;
2321
2322 grp->errorno = errno;
2323
1428 AV *av = newAV (); 2324 av = newAV ();
2325 av_extend (av, items - 1);
1429 2326
1430 for (i = 1; i < items; ++i ) 2327 for (i = 1; i < items; ++i )
1431 av_push (av, newSVsv (ST (i))); 2328 av_push (av, newSVsv (ST (i)));
1432 2329
1433 SvREFCNT_dec (grp->data); 2330 SvREFCNT_dec (grp->sv1);
1434 grp->data = (SV *)av; 2331 grp->sv1 = (SV *)av;
1435} 2332}
2333
2334void
2335errno (aio_req grp, int errorno = errno)
2336 CODE:
2337 grp->errorno = errorno;
1436 2338
1437void 2339void
1438limit (aio_req grp, int limit) 2340limit (aio_req grp, int limit)
1439 CODE: 2341 CODE:
1440 grp->fd2 = limit; 2342 eio_grp_limit (grp, limit);
1441 aio_grp_feed (grp);
1442 2343
1443void 2344void
1444feed (aio_req grp, SV *callback=&PL_sv_undef) 2345feed (aio_req grp, SV *callback = &PL_sv_undef)
1445 CODE: 2346 CODE:
1446{ 2347{
1447 SvREFCNT_dec (grp->fh2); 2348 SvREFCNT_dec (grp->sv2);
1448 grp->fh2 = newSVsv (callback); 2349 grp->sv2 = newSVsv (callback);
2350 grp->feed = aio_grp_feed;
1449 2351
1450 if (grp->fd2 <= 0) 2352 if (grp->int2 <= 0)
1451 grp->fd2 = 2; 2353 grp->int2 = 2;
1452 2354
1453 aio_grp_feed (grp); 2355 eio_grp_limit (grp, grp->int2);
1454} 2356}
1455 2357

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