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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.70 by root, Tue Oct 24 15:15:56 2006 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 2018 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux
5# define _GNU_SOURCE
6#endif
7
8#define _REENTRANT 1
9 2
10#include <errno.h> 3#include <errno.h>
11 4
12#include "EXTERN.h" 5#include "EXTERN.h"
13#include "perl.h" 6#include "perl.h"
14#include "XSUB.h" 7#include "XSUB.h"
15 8
16#include "autoconf/config.h" 9#include "schmorp.h"
17
18#include <pthread.h>
19 10
20#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
21#include <errno.h> 13#include <errno.h>
22#include <sys/time.h>
23#include <sys/select.h>
24#include <sys/types.h> 14#include <sys/types.h>
25#include <sys/stat.h> 15#include <sys/stat.h>
26#include <limits.h> 16#include <limits.h>
27#include <unistd.h>
28#include <fcntl.h> 17#include <fcntl.h>
29#include <signal.h>
30#include <sched.h> 18#include <sched.h>
31 19
32#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
33# if __linux
34# include <sys/sendfile.h>
35# elif __freebsd
36# include <sys/socket.h>
37# include <sys/uio.h> 21# include <sys/mman.h>
38# 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
39# include <sys/socket.h> 86 #include <sys/time.h>
40# elif __solaris /* not yet */
41# 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_EVENTFD
112# include <sys/eventfd.h>
113#endif
114
115#if HAVE_RLIMITS
116 #include <sys/time.h>
117 #include <sys/resource.h>
118#endif
119
120typedef SV SV8; /* byte-sv, used for argument-checking */
121typedef int aio_rfd; /* read file desriptor */
122typedef int aio_wfd; /* write file descriptor */
123
124static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
125
126#define EIO_REQ_MEMBERS \
127 SV *callback; \
128 SV *sv1, *sv2; \
129 SV *sv3, *sv4; \
130 STRLEN stroffset; \
131 SV *self;
132
133#define EIO_NO_WRAPPERS 1
134
135#include "libeio/eio.h"
136
137static int req_invoke (eio_req *req);
138#define EIO_FINISH(req) req_invoke (req)
139static void req_destroy (eio_req *grp);
140#define EIO_DESTROY(req) req_destroy (req)
141
142#include "libeio/eio.c"
143
144#if !HAVE_POSIX_FADVISE
145# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#if !HAVE_POSIX_MADVISE
149# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#ifndef MAP_ANONYMOUS
153# ifdef MAP_ANON
154# define MAP_ANONYMOUS MAP_ANON
42# else 155# else
43# error sendfile support requested but not available 156# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
44# endif 157# endif
45#endif 158#endif
46 159
47/* used for struct dirent, AIX doesn't provide it */ 160/* defines all sorts of constants to 0 unless they are already defined */
48#ifndef NAME_MAX 161/* also provides const_iv_ and const_niv_ macros for them */
49# define NAME_MAX 4096 162#include "def0.h"
50#endif
51 163
52#if __ia64 164#ifndef makedev
53# define STACKSIZE 65536 165# define makedev(maj,min) (((maj) << 8) | (min))
54#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
55# define STACKSIZE PTHREAD_STACK_MIN
56#else
57# define STACKSIZE 16384
58#endif 166#endif
167#ifndef major
168# define major(dev) ((dev) >> 8)
169#endif
170#ifndef minor
171# define minor(dev) ((dev) & 0xff)
172#endif
59 173
60/* buffer size for various temporary buffers */ 174#if PAGESIZE <= 0
61#define AIO_BUFSIZE 65536 175# define PAGESIZE sysconf (_SC_PAGESIZE)
176#endif
62 177
63#define dBUF \ 178/*****************************************************************************/
64 char *aio_buf = malloc (AIO_BUFSIZE); \ 179
65 if (!aio_buf) \ 180#if !_POSIX_MAPPED_FILES
181# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
182# define munmap(addr,length) EIO_ENOSYS ()
183#endif
184
185#if !_POSIX_MEMORY_PROTECTION
186# define mprotect(addr,len,prot) EIO_ENOSYS ()
187#endif
188
189#define FOREIGN_MAGIC PERL_MAGIC_ext
190
191static int ecb_cold
192mmap_free (pTHX_ SV *sv, MAGIC *mg)
193{
194 int old_errno = errno;
195 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
196 errno = old_errno;
197
198 mg->mg_obj = 0; /* just in case */
199
200 SvREADONLY_off (sv);
201
202 if (SvPVX (sv) != mg->mg_ptr)
203 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
204
205 SvCUR_set (sv, 0);
206 SvPVX (sv) = 0;
207 SvOK_off (sv);
208
66 return -1; 209 return 0;
210}
67 211
68#define fBUF free (aio_buf) 212static MGVTBL mmap_vtbl = {
69 213 0, 0, 0, 0, mmap_free
70enum {
71 REQ_QUIT,
72 REQ_OPEN, REQ_CLOSE,
73 REQ_READ, REQ_WRITE, REQ_READAHEAD,
74 REQ_SENDFILE,
75 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
76 REQ_FSYNC, REQ_FDATASYNC,
77 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
78 REQ_READDIR,
79 REQ_LINK, REQ_SYMLINK,
80 REQ_GROUP, REQ_NOP,
81 REQ_BUSY,
82}; 214};
83 215
84#define AIO_REQ_KLASS "IO::AIO::REQ" 216static int ecb_cold
85#define AIO_GRP_KLASS "IO::AIO::GRP" 217sysfree_free (pTHX_ SV *sv, MAGIC *mg)
86
87typedef struct aio_cb
88{ 218{
89 struct aio_cb *volatile next; 219 free (mg->mg_ptr);
220 mg->mg_obj = 0; /* just in case */
90 221
91 SV *data, *callback; 222 SvREADONLY_off (sv);
92 SV *fh, *fh2;
93 void *dataptr, *data2ptr;
94 Stat_t *statdata;
95 off_t offset;
96 size_t length;
97 ssize_t result;
98 223
99 STRLEN dataoffset; 224 if (SvPVX (sv) != mg->mg_ptr)
100 int type; 225 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
101 int fd, fd2;
102 int errorno;
103 mode_t mode; /* open */
104 226
105 unsigned char flags; 227 SvCUR_set (sv, 0);
106 unsigned char pri; 228 SvPVX (sv) = 0;
229 SvOK_off (sv);
107 230
108 SV *self; /* the perl counterpart of this request, if any */ 231 return 0;
109 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 232}
110} aio_cb;
111 233
112enum { 234static MGVTBL sysfree_vtbl = {
113 FLAG_CANCELLED = 0x01, 235 0, 0, 0, 0, sysfree_free
114}; 236};
115 237
116typedef aio_cb *aio_req; 238/*****************************************************************************/
117typedef aio_cb *aio_req_ornot;
118 239
119enum { 240/* helper: set scalar to foreign ptr with custom free */
120 PRI_MIN = -4, 241static void
121 PRI_MAX = 4, 242sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
243{
244 sv_force_normal (sv);
122 245
123 DEFAULT_PRI = 0, 246 /* we store the length in mg_obj, as namlen is I32 :/ */
124 PRI_BIAS = -PRI_MIN, 247 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
125 NUM_PRI = PRI_MAX + PRI_BIAS + 1, 248 ->mg_obj = (SV *)length;
126};
127 249
128static int next_pri = DEFAULT_PRI + PRI_BIAS; 250 SvUPGRADE (sv, SVt_PV); /* nop... */
129 251
130static int started, wanted; 252 if (SvLEN (sv))
131static volatile int nreqs; 253 Safefree (SvPVX (sv));
132static int max_outstanding = 1<<30;
133static int respipe [2];
134 254
135#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 255 SvPVX (sv) = (char *)addr;
136# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 256 SvCUR_set (sv, length);
137#else 257 SvLEN_set (sv, 0);
138# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 258 SvPOK_only (sv);
139#endif 259}
140 260
141static pthread_mutex_t reslock = AIO_MUTEX_INIT; 261static void
142static pthread_mutex_t reqlock = AIO_MUTEX_INIT; 262sv_clear_foreign (SV *sv)
143static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 263{
264 /* todo: iterate over magic and only free ours, but of course */
265 /* the perl5porters will call that (correct) behaviour buggy */
266 sv_unmagic (sv, FOREIGN_MAGIC);
267}
144 268
145/* 269/*****************************************************************************/
146 * a somewhat faster data structure might be nice, but 270
147 * with 8 priorities this actually needs <20 insns 271static void
148 * per shift, the most expensive operation. 272fiemap (eio_req *req)
273{
274 req->result = -1;
275
276#if HAVE_FIEMAP
277 /* assume some c99 */
278 struct fiemap *fiemap = 0;
279 size_t end_offset;
280 int count = req->int3;
281
282 req->flags |= EIO_FLAG_PTR1_FREE;
283
284 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
285 /* increase in 3.5kb steps */
286 if (count < 0)
287 count = 8;
288
289 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
290 errno = ENOMEM;
291 if (!fiemap)
292 return;
293
294 req->ptr1 = fiemap;
295
296 fiemap->fm_start = req->offs;
297 fiemap->fm_length = req->size;
298 fiemap->fm_flags = req->int2;
299 fiemap->fm_extent_count = count;
300
301 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
302 return;
303
304 if (req->int3 >= 0 /* not autosizing */
305 || !fiemap->fm_mapped_extents /* no more extents */
306 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
307 goto done;
308
309 /* else we have to loop -
310 * it would be tempting (actually I tried that first) to just query the
311 * number of extents needed, but linux often feels like not returning all
312 * extents, without telling us it left any out. this complicates
313 * this quite a bit.
149 */ 314 */
150typedef struct {
151 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
152 int size;
153} reqq;
154 315
155static reqq req_queue; 316 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
156static reqq res_queue;
157 317
158int reqq_push (reqq *q, aio_req req) 318 for (;;)
159{
160 int pri = req->pri;
161 req->next = 0;
162
163 if (q->qe[pri])
164 { 319 {
165 q->qe[pri]->next = req; 320 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
166 q->qe[pri] = req; 321 char scratch[3072];
167 } 322 struct fiemap *incmap = (struct fiemap *)scratch;
168 else
169 q->qe[pri] = q->qs[pri] = req;
170 323
171 return q->size++; 324 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
172} 325 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
326 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
327 incmap->fm_flags = fiemap->fm_flags;
328 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
173 329
174aio_req reqq_shift (reqq *q) 330 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
175{
176 int pri;
177
178 if (!q->size)
179 return 0; 331 return;
180 332
181 --q->size; 333 if (!incmap->fm_mapped_extents)
334 goto done;
182 335
183 for (pri = NUM_PRI; pri--; ) 336 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
184 { 337 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
185 aio_req req = q->qs[pri]; 338 errno = ENOMEM;
186
187 if (req) 339 if (!fiemap)
340 return;
341
342 req->ptr1 = fiemap;
343
344 for (count = 0; count < incmap->fm_mapped_extents; ++count)
188 { 345 {
189 if (!(q->qs[pri] = req->next)) 346 struct fiemap_extent *e = incmap->fm_extents + count;
190 q->qe[pri] = 0;
191 347
192 return req; 348 if (e->fe_logical + e->fe_length >= end_offset)
349 goto done;
350
351 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
352
353 if (e->fe_flags & FIEMAP_EXTENT_LAST)
354 goto done;
355
193 } 356 }
194 } 357 }
195 358
196 abort (); 359done:
197} 360 req->result = 0;
198 361
362#else
363 errno = ENOSYS;
364#endif
365}
366
367/*****************************************************************************/
368
369enum {
370 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
371};
372
373typedef eio_req *aio_req;
374typedef eio_req *aio_req_ornot;
375typedef eio_wd aio_wd;
376
377static SV *on_next_submit;
378static int next_pri = EIO_PRI_DEFAULT;
379static int max_outstanding;
380
381static s_epipe respipe;
382
383static void req_destroy (aio_req req);
199static void req_invoke (aio_req req); 384static void req_cancel (aio_req req);
200static void req_free (aio_req req); 385
386static void
387want_poll (void)
388{
389 /* write a dummy byte to the pipe so fh becomes ready */
390 s_epipe_signal (&respipe);
391}
392
393static void
394done_poll (void)
395{
396 /* read any signals sent by the worker threads */
397 s_epipe_drain (&respipe);
398}
201 399
202/* must be called at most once */ 400/* must be called at most once */
203static SV *req_sv (aio_req req, const char *klass) 401static SV *
402req_sv (aio_req req, HV *stash)
204{ 403{
205 if (!req->self) 404 if (!req->self)
206 { 405 {
207 req->self = (SV *)newHV (); 406 req->self = (SV *)newHV ();
208 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 407 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
209 } 408 }
210 409
211 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 410 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
212} 411}
213 412
214static aio_req SvAIO_REQ (SV *sv) 413static SV *
414newSVaio_wd (aio_wd wd)
415{
416 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
417}
418
419static aio_req
420SvAIO_REQ (SV *sv)
215{ 421{
216 MAGIC *mg; 422 MAGIC *mg;
217 423
218 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 424 if (!SvROK (sv)
425 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
426 || (SvSTASH (SvRV (sv)) != aio_grp_stash
427 && SvSTASH (SvRV (sv)) != aio_req_stash
428 && !sv_derived_from (sv, "IO::AIO::REQ")))
219 croak ("object of class " AIO_REQ_KLASS " expected"); 429 croak ("object of class IO::AIO::REQ expected");
220 430
221 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 431 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
222 432
223 return mg ? (aio_req)mg->mg_ptr : 0; 433 return mg ? (aio_req)mg->mg_ptr : 0;
224} 434}
225 435
436static aio_wd
437SvAIO_WD (SV *sv)
438{
439 if (!SvROK (sv)
440 || SvTYPE (SvRV (sv)) != SVt_PVMG
441 || SvSTASH (SvRV (sv)) != aio_wd_stash)
442 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
443
444 return (aio_wd)(long)SvIVX (SvRV (sv));
445}
446
447static SV *
448newmortalFH (int fd, int flags)
449{
450 if (fd < 0)
451 return &PL_sv_undef;
452
453 GV *gv = (GV *)sv_newmortal ();
454 char sym[64];
455 int symlen;
456
457 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
458 gv_init (gv, aio_stash, sym, symlen, 0);
459
460 symlen = snprintf (
461 sym,
462 sizeof (sym),
463 "%s&=%d",
464 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
465 fd
466 );
467
468 return do_open (gv, sym, symlen, 0, 0, 0, 0)
469 ? (SV *)gv : &PL_sv_undef;
470}
471
472static void
226static void aio_grp_feed (aio_req grp) 473aio_grp_feed (aio_req grp)
227{ 474{
228 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 475 if (grp->sv2 && SvOK (grp->sv2))
229 { 476 {
230 int old_len = grp->length;
231
232 if (grp->fh2 && SvOK (grp->fh2))
233 {
234 dSP; 477 dSP;
235 478
236 ENTER; 479 ENTER;
237 SAVETMPS; 480 SAVETMPS;
238 PUSHMARK (SP); 481 PUSHMARK (SP);
239 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 482 XPUSHs (req_sv (grp, aio_grp_stash));
240 PUTBACK; 483 PUTBACK;
241 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 484 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
242 SPAGAIN; 485 SPAGAIN;
243 FREETMPS; 486 FREETMPS;
244 LEAVE; 487 LEAVE;
245 }
246
247 /* stop if no progress has been made */
248 if (old_len == grp->length)
249 {
250 SvREFCNT_dec (grp->fh2);
251 grp->fh2 = 0;
252 break;
253 }
254 } 488 }
255} 489}
256 490
257static void aio_grp_dec (aio_req grp) 491static void
492req_submit (eio_req *req)
258{ 493{
259 --grp->length; 494 eio_submit (req);
260 495
261 /* call feeder, if applicable */ 496 if (expect_false (on_next_submit))
262 aio_grp_feed (grp);
263
264 /* finish, if done */
265 if (!grp->length && grp->fd)
266 { 497 {
267 req_invoke (grp); 498 dSP;
268 req_free (grp); 499 SV *cb = sv_2mortal (on_next_submit);
500
501 on_next_submit = 0;
502
503 PUSHMARK (SP);
504 PUTBACK;
505 call_sv (cb, G_DISCARD | G_EVAL);
269 } 506 }
270} 507}
271 508
272static void poll_wait () 509static int
510req_invoke (eio_req *req)
273{ 511{
274 fd_set rfd; 512 if (req->flags & FLAG_SV2_RO_OFF)
513 SvREADONLY_off (req->sv2);
275 514
276 while (nreqs) 515 if (!EIO_CANCELLED (req) && req->callback)
277 { 516 {
278 int size;
279#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
280 pthread_mutex_lock (&reslock);
281#endif
282 size = res_queue.size;
283#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
284 pthread_mutex_unlock (&reslock);
285#endif
286
287 if (size)
288 return;
289
290 FD_ZERO(&rfd);
291 FD_SET(respipe [0], &rfd);
292
293 select (respipe [0] + 1, &rfd, 0, 0, 0);
294 }
295}
296
297static void req_invoke (aio_req req)
298{
299 dSP; 517 dSP;
300 518 static SV *sv_result_cache; /* caches the result integer SV */
301 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 519 SV *sv_result;
302 {
303 errno = req->errorno;
304 520
305 ENTER; 521 ENTER;
306 SAVETMPS; 522 SAVETMPS;
307 PUSHMARK (SP); 523 PUSHMARK (SP);
308 EXTEND (SP, 1); 524 EXTEND (SP, 1);
309 525
526 /* do not recreate the result IV from scratch each time */
527 if (expect_true (sv_result_cache))
528 {
529 sv_result = sv_result_cache; sv_result_cache = 0;
530 SvIV_set (sv_result, req->result);
531 SvIOK_only (sv_result);
532 }
533 else
534 {
535 sv_result = newSViv (req->result);
536 SvREADONLY_on (sv_result);
537 }
538
310 switch (req->type) 539 switch (req->type)
311 { 540 {
541 case EIO_WD_OPEN:
542 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
543 break;
544
312 case REQ_READDIR: 545 case EIO_READDIR:
313 { 546 {
314 SV *rv = &PL_sv_undef; 547 SV *rv = &PL_sv_undef;
315 548
316 if (req->result >= 0) 549 if (req->result >= 0)
317 { 550 {
551 int i;
318 char *buf = req->data2ptr; 552 char *names = (char *)req->ptr2;
553 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
319 AV *av = newAV (); 554 AV *av = newAV ();
320 555
321 while (req->result) 556 av_extend (av, req->result - 1);
557
558 for (i = 0; i < req->result; ++i)
322 { 559 {
560 if (req->int1 & EIO_READDIR_DENTS)
561 {
562 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
563
564 if (req->int1 & EIO_READDIR_CUSTOM2)
565 {
566 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
567 AV *avent = newAV ();
568
569 av_extend (avent, 2);
570
571 if (!sv_type [ent->type])
572 {
573 sv_type [ent->type] = newSViv (ent->type);
574 SvREADONLY_on (sv_type [ent->type]);
575 }
576
577 av_store (avent, 0, namesv);
578 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
579 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
580
581 av_store (av, i, newRV_noinc ((SV *)avent));
582 }
583 else
584 av_store (av, i, namesv);
585
586 ++ent;
587 }
588 else
589 {
323 SV *sv = newSVpv (buf, 0); 590 SV *name = newSVpv (names, 0);
324
325 av_push (av, sv); 591 av_store (av, i, name);
326 buf += SvCUR (sv) + 1; 592 names += SvCUR (name) + 1;
327 req->result--; 593 }
328 } 594 }
329 595
330 rv = sv_2mortal (newRV_noinc ((SV *)av)); 596 rv = sv_2mortal (newRV_noinc ((SV *)av));
331 } 597 }
332 598
333 PUSHs (rv); 599 PUSHs (rv);
600
601 if (req->int1 & EIO_READDIR_CUSTOM1)
602 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
334 } 603 }
335 break; 604 break;
336 605
337 case REQ_OPEN: 606 case EIO_OPEN:
607 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
608 break;
609
610 case EIO_STATVFS:
611 case EIO_FSTATVFS:
338 { 612 {
339 /* convert fd to fh */ 613 SV *rv = &PL_sv_undef;
340 SV *fh; 614
615#ifndef _WIN32
616 if (req->result >= 0)
617 {
618 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
619 HV *hv = newHV ();
620 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
621 * chooses to make it a struct.
622 */
623 unsigned long fsid = 0;
624 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
341 625
342 PUSHs (sv_2mortal (newSViv (req->result))); 626 rv = sv_2mortal (newRV_noinc ((SV *)hv));
343 PUTBACK;
344 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
345 SPAGAIN;
346 627
347 fh = SvREFCNT_inc (POPs); 628 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
629 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
630 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
631 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
632 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
633 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
634 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
635 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
636 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
637 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
638 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
639 }
640#endif
348 641
349 PUSHMARK (SP); 642 PUSHs (rv);
350 XPUSHs (sv_2mortal (fh));
351 } 643 }
644
352 break; 645 break;
353 646
354 case REQ_GROUP: 647 case EIO_GROUP:
355 req->fd = 2; /* mark group as finished */ 648 req->int1 = 2; /* mark group as finished */
356 649
357 if (req->data) 650 if (req->sv1)
358 { 651 {
359 int i; 652 int i;
360 AV *av = (AV *)req->data; 653 AV *av = (AV *)req->sv1;
361 654
362 EXTEND (SP, AvFILL (av) + 1); 655 EXTEND (SP, AvFILL (av) + 1);
363 for (i = 0; i <= AvFILL (av); ++i) 656 for (i = 0; i <= AvFILL (av); ++i)
364 PUSHs (*av_fetch (av, i, 0)); 657 PUSHs (*av_fetch (av, i, 0));
365 } 658 }
366 break; 659 break;
367 660
368 case REQ_NOP: 661 case EIO_NOP:
369 case REQ_BUSY: 662 case EIO_BUSY:
370 break; 663 break;
371 664
665 case EIO_READLINK:
666 case EIO_REALPATH:
667 if (req->result > 0)
668 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
669 break;
670
671 case EIO_STAT:
672 case EIO_LSTAT:
673 case EIO_FSTAT:
674 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
675
676 if (!(PL_laststatval = req->result))
677 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
678 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
679
680 PUSHs (sv_result);
681 break;
682
683 case EIO_SEEK:
684 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
685 break;
686
687 case EIO_READ:
688 {
689 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
690 *SvEND (req->sv2) = 0;
691 SvPOK_only (req->sv2);
692 SvSETMAGIC (req->sv2);
693 PUSHs (sv_result);
694 }
695 break;
696
697 case EIO_SLURP:
698 {
699 if (req->result >= 0)
700 {
701 /* if length was originally not known, we steal the malloc'ed memory */
702 if (req->flags & EIO_FLAG_PTR2_FREE)
703 {
704 req->flags &= ~EIO_FLAG_PTR2_FREE;
705 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
706 }
707 else
708 {
709 SvCUR_set (req->sv2, req->result);
710 *SvEND (req->sv2) = 0;
711 SvPOK_only (req->sv2);
712 }
713
714 SvSETMAGIC (req->sv2);
715 }
716
717 PUSHs (sv_result);
718 }
719 break;
720
721 case EIO_CUSTOM:
722 if (req->feed == fiemap)
723 {
724#if HAVE_FIEMAP
725 if (!req->result)
726 {
727 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
728
729 if (fiemap->fm_extent_count)
730 {
731 AV *av = newAV ();
732 int i;
733
734 while (fiemap->fm_mapped_extents)
735 {
736 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
737 AV *ext_av = newAV ();
738
739 av_store (ext_av, 3, newSVuv (extent->fe_flags));
740 av_store (ext_av, 2, newSVval64 (extent->fe_length));
741 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
742 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
743
744 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
745 }
746
747 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
748 }
749 else
750 {
751 SvIV_set (sv_result, fiemap->fm_mapped_extents);
752 PUSHs (sv_result);
753 }
754 }
755#endif
756 }
757 else
758 PUSHs (sv_result);
759 break;
760
761 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
762 if (req->result > 0)
763 SvIV_set (sv_result, 0);
764 /* FALLTHROUGH */
765
372 default: 766 default:
373 PUSHs (sv_2mortal (newSViv (req->result))); 767 PUSHs (sv_result);
374 break; 768 break;
375 } 769 }
376 770
771 errno = req->errorno;
377 772
378 PUTBACK; 773 PUTBACK;
379 call_sv (req->callback, G_VOID | G_EVAL); 774 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
380 SPAGAIN; 775 SPAGAIN;
776
777 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
778 SvREFCNT_dec (sv_result);
779 else
780 sv_result_cache = sv_result;
381 781
382 FREETMPS; 782 FREETMPS;
383 LEAVE; 783 LEAVE;
784
785 PUTBACK;
384 } 786 }
385 787
386 if (req->grp) 788 return !!SvTRUE (ERRSV);
387 {
388 aio_req grp = req->grp;
389
390 /* unlink request */
391 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
392 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
393
394 if (grp->grp_first == req)
395 grp->grp_first = req->grp_next;
396
397 aio_grp_dec (grp);
398 }
399
400 if (SvTRUE (ERRSV))
401 {
402 req_free (req);
403 croak (0);
404 }
405} 789}
406 790
407static void req_free (aio_req req) 791static void
792req_destroy (aio_req req)
408{ 793{
409 if (req->self) 794 if (req->self)
410 { 795 {
411 sv_unmagic (req->self, PERL_MAGIC_ext); 796 sv_unmagic (req->self, PERL_MAGIC_ext);
412 SvREFCNT_dec (req->self); 797 SvREFCNT_dec (req->self);
413 } 798 }
414 799
415 SvREFCNT_dec (req->data);
416 SvREFCNT_dec (req->fh); 800 SvREFCNT_dec (req->sv1);
417 SvREFCNT_dec (req->fh2); 801 SvREFCNT_dec (req->sv2);
802 SvREFCNT_dec (req->sv3);
803 SvREFCNT_dec (req->sv4);
418 SvREFCNT_dec (req->callback); 804 SvREFCNT_dec (req->callback);
419 Safefree (req->statdata);
420 805
421 if (req->type == REQ_READDIR && req->result >= 0)
422 free (req->data2ptr);
423
424 Safefree (req); 806 free (req);
425} 807}
426 808
427static void req_cancel (aio_req req) 809static void
810req_cancel_subs (aio_req grp)
428{ 811{
429 req->flags |= FLAG_CANCELLED;
430
431 if (req->type == REQ_GROUP) 812 if (grp->type != EIO_GROUP)
813 return;
814
815 SvREFCNT_dec (grp->sv2);
816 grp->sv2 = 0;
817
818 eio_grp_cancel (grp);
819}
820
821static void ecb_cold
822create_respipe (void)
823{
824 if (s_epipe_renew (&respipe))
825 croak ("IO::AIO: unable to initialize result pipe");
826}
827
828static void
829poll_wait (void)
830{
831 while (eio_nreqs ())
432 { 832 {
433 aio_req sub; 833 int size;
434 834
435 for (sub = req->grp_first; sub; sub = sub->grp_next) 835 X_LOCK (EIO_POOL->reslock);
436 req_cancel (sub); 836 size = EIO_POOL->res_queue.size;
837 X_UNLOCK (EIO_POOL->reslock);
838
839 if (size)
840 return;
841
842 etp_maybe_start_thread (EIO_POOL);
843
844 s_epipe_wait (&respipe);
437 } 845 }
438} 846}
439 847
440static int poll_cb () 848static int
849poll_cb (void)
441{ 850{
442 dSP;
443 int count = 0;
444 int do_croak = 0;
445 aio_req req;
446
447 for (;;) 851 for (;;)
448 { 852 {
449 pthread_mutex_lock (&reslock); 853 int res = eio_poll ();
450 req = reqq_shift (&res_queue);
451 854
452 if (req) 855 if (res > 0)
856 croak (0);
857
858 if (!max_outstanding || max_outstanding > eio_nreqs ())
859 return res;
860
861 poll_wait ();
862 }
863}
864
865static void ecb_cold
866reinit (void)
867{
868 create_respipe ();
869
870 if (eio_init (want_poll, done_poll) < 0)
871 croak ("IO::AIO: unable to initialise eio library");
872}
873
874/*****************************************************************************/
875
876static SV *
877get_cb (SV *cb_sv)
878{
879 SvGETMAGIC (cb_sv);
880 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
881}
882
883static aio_req ecb_noinline
884dreq (SV *callback)
885{
886 SV *cb_cv;
887 aio_req req;
888 int req_pri = next_pri;
889 next_pri = EIO_PRI_DEFAULT;
890
891 cb_cv = get_cb (callback);
892
893 req = calloc (sizeof (*req), 1);
894 if (!req)
895 croak ("out of memory during eio_req allocation");
896
897 req->callback = SvREFCNT_inc (cb_cv);
898 req->pri = req_pri;
899
900 return req;
901}
902
903#define dREQ \
904 aio_req req = dreq (callback); \
905
906#define REQ_SEND \
907 PUTBACK; \
908 req_submit (req); \
909 SPAGAIN; \
910 \
911 if (GIMME_V != G_VOID) \
912 XPUSHs (req_sv (req, aio_req_stash));
913
914ecb_inline void
915req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
916{
917 if (expect_false (SvROK (path)))
918 {
919 SV *rv = SvRV (path);
920 SV *wdob;
921
922 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
453 { 923 {
454 if (!res_queue.size) 924 path = AvARRAY (rv)[1];
925 wdob = AvARRAY (rv)[0];
926
927 if (SvOK (wdob))
455 { 928 {
456 /* read any signals sent by the worker threads */ 929 *wd = SvAIO_WD (wdob);
457 char buf [32]; 930 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
458 while (read (respipe [0], buf, 32) == 32)
459 ;
460 } 931 }
932 else
933 *wd = EIO_INVALID_WD;
461 } 934 }
462 935 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
463 pthread_mutex_unlock (&reslock);
464
465 if (!req)
466 break;
467
468 --nreqs;
469
470 if (req->type == REQ_QUIT)
471 started--;
472 else if (req->type == REQ_GROUP && req->length)
473 { 936 {
474 req->fd = 1; /* mark request as delayed */ 937 *wd = (aio_wd)(long)SvIVX (rv);
475 continue; 938 *wdsv = SvREFCNT_inc_NN (rv);
939 *ptr = ".";
940 return; /* path set to "." */
476 } 941 }
477 else 942 else
478 { 943 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
479 if (req->type == REQ_READ)
480 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
481
482 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
483 SvREADONLY_off (req->data);
484
485 if (req->statdata)
486 {
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
488 PL_laststatval = req->result;
489 PL_statcache = *(req->statdata);
490 }
491
492 req_invoke (req);
493
494 count++;
495 }
496
497 req_free (req);
498 } 944 }
499 945
500 return count; 946 *pathsv = newSVsv (path);
947 *ptr = SvPVbyte_nolen (*pathsv);
501} 948}
502 949
503static void *aio_proc(void *arg); 950static void ecb_noinline
504 951req_set_path1 (aio_req req, SV *path)
505static void start_thread (void)
506{ 952{
507 sigset_t fullsigset, oldsigset; 953 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
508 pthread_t tid;
509 pthread_attr_t attr;
510
511 pthread_attr_init (&attr);
512 pthread_attr_setstacksize (&attr, STACKSIZE);
513 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
514
515 sigfillset (&fullsigset);
516 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
517
518 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
519 started++;
520
521 sigprocmask (SIG_SETMASK, &oldsigset, 0);
522} 954}
523 955
524static void req_send (aio_req req) 956static void ecb_noinline
957req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
525{ 958{
526 while (started < wanted && nreqs >= started) 959 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
527 start_thread ();
528 960
529 ++nreqs; 961 switch (SvTYPE (rv))
530
531 pthread_mutex_lock (&reqlock);
532 reqq_push (&req_queue, req);
533 pthread_cond_signal (&reqwait);
534 pthread_mutex_unlock (&reqlock);
535
536 if (nreqs > max_outstanding)
537 for (;;)
538 {
539 poll_cb ();
540
541 if (nreqs <= max_outstanding)
542 break;
543
544 poll_wait ();
545 }
546}
547
548static void end_thread (void)
549{
550 aio_req req;
551
552 Newz (0, req, 1, aio_cb);
553
554 req->type = REQ_QUIT;
555 req->pri = PRI_MAX + PRI_BIAS;
556
557 req_send (req);
558}
559
560static void min_parallel (int nthreads)
561{
562 if (wanted < nthreads)
563 wanted = nthreads;
564}
565
566static void max_parallel (int nthreads)
567{
568 int cur = started;
569
570 if (wanted > nthreads)
571 wanted = nthreads;
572
573 while (cur > wanted)
574 { 962 {
575 end_thread (); 963 case SVt_PVIO:
576 cur--; 964 case SVt_PVLV:
965 case SVt_PVGV:
966 req->type = type_fh;
967 req->sv1 = newSVsv (fh_or_path);
968 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
969 break;
970
971 default:
972 req->type = type_path;
973 req_set_path1 (req, fh_or_path);
974 break;
577 } 975 }
578
579 while (started > wanted)
580 {
581 poll_wait ();
582 poll_cb ();
583 }
584} 976}
585 977
586static void create_pipe () 978XS(boot_IO__AIO) ecb_cold;
587{
588 if (pipe (respipe))
589 croak ("unable to initialize result pipe");
590 979
591 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 980MODULE = IO::AIO PACKAGE = IO::AIO
592 croak ("cannot set result pipe to nonblocking mode");
593 981
594 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 982PROTOTYPES: ENABLE
595 croak ("cannot set result pipe to nonblocking mode");
596}
597 983
598/*****************************************************************************/ 984BOOT:
599/* work around various missing functions */
600
601#if !HAVE_PREADWRITE
602# define pread aio_pread
603# define pwrite aio_pwrite
604
605/*
606 * make our pread/pwrite safe against themselves, but not against
607 * normal read/write by using a mutex. slows down execution a lot,
608 * but that's your problem, not mine.
609 */
610static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
611
612static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
613{ 985{
614 ssize_t res; 986 static const struct {
615 off_t ooffset; 987 const char *name;
988 IV iv;
989 } *civ, const_iv[] = {
990# define const_niv(name, value) { # name, (IV) value },
991# define const_iv(name) { # name, (IV) name },
992# define const_eio(name) { # name, (IV) EIO_ ## name },
616 993
617 pthread_mutex_lock (&preadwritelock); 994 /* you have to re-run ./gendef0 after adding/removing any constants here */
618 ooffset = lseek (fd, 0, SEEK_CUR); 995 /* the first block can be undef if missing */
619 lseek (fd, offset, SEEK_SET); 996 const_iv (ENOSYS)
620 res = read (fd, buf, count); 997 const_iv (EXDEV)
621 lseek (fd, ooffset, SEEK_SET); 998 const_iv (EBADR)
622 pthread_mutex_unlock (&preadwritelock);
623 999
624 return res; 1000 /* for lseek */
625} 1001 const_iv (SEEK_DATA)
1002 const_iv (SEEK_HOLE)
626 1003
627static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1004 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
628{ 1005 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
629 ssize_t res; 1006 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
630 off_t ooffset; 1007 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1008 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1009 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
631 1010
632 pthread_mutex_lock (&preadwritelock); 1011 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
633 ooffset = lseek (fd, 0, SEEK_CUR); 1012 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
634 lseek (fd, offset, SEEK_SET); 1013 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
635 res = write (fd, buf, count); 1014 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
636 lseek (fd, offset, SEEK_SET); 1015 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
637 pthread_mutex_unlock (&preadwritelock);
638 1016
639 return res; 1017 /* the second block will be 0 when missing */
640} 1018 const_iv (O_RDONLY)
641#endif 1019 const_iv (O_WRONLY)
1020 const_iv (O_RDWR)
1021 const_iv (O_CREAT)
1022 const_iv (O_TRUNC)
1023 const_iv (O_EXCL)
1024 const_iv (O_APPEND)
642 1025
643#if !HAVE_FDATASYNC 1026 const_iv (O_ASYNC)
644# define fdatasync fsync 1027 const_iv (O_DIRECT)
645#endif 1028 const_iv (O_NOATIME)
646 1029
647#if !HAVE_READAHEAD 1030 const_iv (O_CLOEXEC)
648# define readahead aio_readahead 1031 const_iv (O_NOCTTY)
1032 const_iv (O_NOFOLLOW)
1033 const_iv (O_NONBLOCK)
1034 const_iv (O_EXEC)
1035 const_iv (O_SEARCH)
1036 const_iv (O_DIRECTORY)
1037 const_iv (O_DSYNC)
1038 const_iv (O_RSYNC)
1039 const_iv (O_SYNC)
1040 const_iv (O_PATH)
1041 const_iv (O_TMPFILE)
1042 const_iv (O_TTY_INIT)
649 1043
650static ssize_t readahead (int fd, off_t offset, size_t count) 1044 const_iv (S_IFIFO)
651{ 1045 const_iv (S_IFCHR)
652 dBUF; 1046 const_iv (S_IFBLK)
1047 const_iv (S_IFLNK)
1048 const_iv (S_IFREG)
1049 const_iv (S_IFDIR)
1050 const_iv (S_IFWHT)
1051 const_iv (S_IFSOCK)
1052 const_iv (S_IFMT)
653 1053
654 while (count > 0) 1054 const_iv (ST_RDONLY)
655 { 1055 const_iv (ST_NOSUID)
656 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 1056 const_iv (ST_NODEV)
1057 const_iv (ST_NOEXEC)
1058 const_iv (ST_SYNCHRONOUS)
1059 const_iv (ST_MANDLOCK)
1060 const_iv (ST_WRITE)
1061 const_iv (ST_APPEND)
1062 const_iv (ST_IMMUTABLE)
1063 const_iv (ST_NOATIME)
1064 const_iv (ST_NODIRATIME)
1065 const_iv (ST_RELATIME)
657 1066
658 pread (fd, aio_buf, len, offset); 1067 const_iv (PROT_NONE)
659 offset += len; 1068 const_iv (PROT_EXEC)
660 count -= len; 1069 const_iv (PROT_READ)
661 } 1070 const_iv (PROT_WRITE)
662 1071
663 fBUF; 1072 const_iv (MAP_PRIVATE)
1073 const_iv (MAP_SHARED)
1074 const_iv (MAP_FIXED)
1075 const_iv (MAP_ANONYMOUS)
664 1076
665 errno = 0; 1077 /* linuxish */
666} 1078 const_iv (MAP_LOCKED)
667#endif 1079 const_iv (MAP_NORESERVE)
1080 const_iv (MAP_POPULATE)
1081 const_iv (MAP_NONBLOCK)
1082 const_iv (MAP_GROWSDOWN)
1083 const_iv (MAP_32BIT)
1084 const_iv (MAP_HUGETLB)
1085 const_iv (MAP_STACK)
668 1086
669#if !HAVE_READDIR_R 1087 const_iv (F_DUPFD_CLOEXEC)
670# define readdir_r aio_readdir_r
671 1088
672static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1089 const_iv (F_OFD_GETLK)
673 1090 const_iv (F_OFD_SETLK)
674static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1091 const_iv (F_OFD_GETLKW)
675{
676 struct dirent *e;
677 int errorno;
678 1092
679 pthread_mutex_lock (&readdirlock); 1093 const_iv (FIFREEZE)
1094 const_iv (FITHAW)
1095 const_iv (FITRIM)
1096 const_iv (FICLONE)
1097 const_iv (FICLONERANGE)
1098 const_iv (FIDEDUPERANGE)
680 1099
681 e = readdir (dirp); 1100 const_iv (FS_IOC_GETFLAGS)
682 errorno = errno; 1101 const_iv (FS_IOC_SETFLAGS)
1102 const_iv (FS_IOC_GETVERSION)
1103 const_iv (FS_IOC_SETVERSION)
1104 const_iv (FS_IOC_FIEMAP)
1105 const_iv (FS_IOC_FSGETXATTR)
1106 const_iv (FS_IOC_FSSETXATTR)
1107 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1108 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1109 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
683 1110
684 if (e) 1111 const_iv (FS_KEY_DESCRIPTOR_SIZE)
685 {
686 *res = ent;
687 strcpy (ent->d_name, e->d_name);
688 }
689 else
690 *res = 0;
691 1112
692 pthread_mutex_unlock (&readdirlock); 1113 const_iv (FS_SECRM_FL)
1114 const_iv (FS_UNRM_FL)
1115 const_iv (FS_COMPR_FL)
1116 const_iv (FS_SYNC_FL)
1117 const_iv (FS_IMMUTABLE_FL)
1118 const_iv (FS_APPEND_FL)
1119 const_iv (FS_NODUMP_FL)
1120 const_iv (FS_NOATIME_FL)
1121 const_iv (FS_DIRTY_FL)
1122 const_iv (FS_COMPRBLK_FL)
1123 const_iv (FS_NOCOMP_FL)
1124 const_iv (FS_ENCRYPT_FL)
1125 const_iv (FS_BTREE_FL)
1126 const_iv (FS_INDEX_FL)
1127 const_iv (FS_JOURNAL_DATA_FL)
1128 const_iv (FS_NOTAIL_FL)
1129 const_iv (FS_DIRSYNC_FL)
1130 const_iv (FS_TOPDIR_FL)
1131 const_iv (FS_FL_USER_MODIFIABLE)
693 1132
694 errno = errorno; 1133 const_iv (FS_XFLAG_REALTIME)
695 return e ? 0 : -1; 1134 const_iv (FS_XFLAG_PREALLOC)
696} 1135 const_iv (FS_XFLAG_IMMUTABLE)
697#endif 1136 const_iv (FS_XFLAG_APPEND)
1137 const_iv (FS_XFLAG_SYNC)
1138 const_iv (FS_XFLAG_NOATIME)
1139 const_iv (FS_XFLAG_NODUMP)
1140 const_iv (FS_XFLAG_RTINHERIT)
1141 const_iv (FS_XFLAG_PROJINHERIT)
1142 const_iv (FS_XFLAG_NOSYMLINKS)
1143 const_iv (FS_XFLAG_EXTSIZE)
1144 const_iv (FS_XFLAG_EXTSZINHERIT)
1145 const_iv (FS_XFLAG_NODEFRAG)
1146 const_iv (FS_XFLAG_FILESTREAM)
1147 const_iv (FS_XFLAG_DAX)
1148 const_iv (FS_XFLAG_HASATTR)
698 1149
699/* sendfile always needs emulation */ 1150 const_iv (FIEMAP_FLAG_SYNC)
700static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1151 const_iv (FIEMAP_FLAG_XATTR)
701{ 1152 const_iv (FIEMAP_FLAGS_COMPAT)
702 ssize_t res; 1153 const_iv (FIEMAP_EXTENT_LAST)
1154 const_iv (FIEMAP_EXTENT_UNKNOWN)
1155 const_iv (FIEMAP_EXTENT_DELALLOC)
1156 const_iv (FIEMAP_EXTENT_ENCODED)
1157 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1158 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1159 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1160 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1161 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1162 const_iv (FIEMAP_EXTENT_MERGED)
1163 const_iv (FIEMAP_EXTENT_SHARED)
703 1164
704 if (!count) 1165 const_iv (SPLICE_F_MOVE)
705 return 0; 1166 const_iv (SPLICE_F_NONBLOCK)
1167 const_iv (SPLICE_F_MORE)
1168 const_iv (SPLICE_F_GIFT)
706 1169
707#if HAVE_SENDFILE 1170 const_iv (EFD_CLOEXEC)
708# if __linux 1171 const_iv (EFD_NONBLOCK)
709 res = sendfile (ofd, ifd, &offset, count); 1172 const_iv (EFD_SEMAPHORE)
710 1173
711# elif __freebsd 1174 /* these are libeio constants, and are independent of gendef0 */
712 /* 1175 const_eio (SEEK_SET)
713 * Of course, the freebsd sendfile is a dire hack with no thoughts 1176 const_eio (SEEK_CUR)
714 * wasted on making it similar to other I/O functions. 1177 const_eio (SEEK_END)
715 */
716 {
717 off_t sbytes;
718 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
719 1178
720 if (res < 0 && sbytes) 1179 const_eio (MCL_FUTURE)
721 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1180 const_eio (MCL_CURRENT)
722 res = sbytes; 1181
1182 const_eio (MS_ASYNC)
1183 const_eio (MS_INVALIDATE)
1184 const_eio (MS_SYNC)
1185
1186 const_eio (MT_MODIFY)
1187
1188 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1189 const_eio (SYNC_FILE_RANGE_WRITE)
1190 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1191
1192 const_eio (FALLOC_FL_KEEP_SIZE)
1193 const_eio (FALLOC_FL_PUNCH_HOLE)
1194 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1195 const_eio (FALLOC_FL_ZERO_RANGE)
1196 const_eio (FALLOC_FL_INSERT_RANGE)
1197 const_eio (FALLOC_FL_UNSHARE_RANGE)
1198
1199 const_eio (RENAME_NOREPLACE)
1200 const_eio (RENAME_EXCHANGE)
1201 const_eio (RENAME_WHITEOUT)
1202
1203 const_eio (READDIR_DENTS)
1204 const_eio (READDIR_DIRS_FIRST)
1205 const_eio (READDIR_STAT_ORDER)
1206 const_eio (READDIR_FOUND_UNKNOWN)
1207
1208 const_eio (DT_UNKNOWN)
1209 const_eio (DT_FIFO)
1210 const_eio (DT_CHR)
1211 const_eio (DT_DIR)
1212 const_eio (DT_BLK)
1213 const_eio (DT_REG)
1214 const_eio (DT_LNK)
1215 const_eio (DT_SOCK)
1216 const_eio (DT_WHT)
723 } 1217 };
724 1218
725# elif __hpux 1219 aio_stash = gv_stashpv ("IO::AIO" , 1);
726 res = sendfile (ofd, ifd, offset, count, 0, 0); 1220 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1221 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1222 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
727 1223
728# elif __solaris 1224 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
729 { 1225 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
730 struct sendfilevec vec;
731 size_t sbytes;
732 1226
733 vec.sfv_fd = ifd; 1227 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
734 vec.sfv_flag = 0;
735 vec.sfv_off = offset;
736 vec.sfv_len = count;
737 1228
738 res = sendfilev (ofd, &vec, 1, &sbytes); 1229 reinit ();
1230}
739 1231
740 if (res < 0 && sbytes) 1232void
1233reinit ()
1234 PROTOTYPE:
1235
1236void
1237max_poll_reqs (unsigned int nreqs)
1238 PROTOTYPE: $
1239 CODE:
1240 eio_set_max_poll_reqs (nreqs);
1241
1242void
1243max_poll_time (double nseconds)
1244 PROTOTYPE: $
1245 CODE:
1246 eio_set_max_poll_time (nseconds);
1247
1248void
1249min_parallel (unsigned int nthreads)
1250 PROTOTYPE: $
1251 CODE:
1252 eio_set_min_parallel (nthreads);
1253
1254void
1255max_parallel (unsigned int nthreads)
1256 PROTOTYPE: $
1257 CODE:
1258 eio_set_max_parallel (nthreads);
1259
1260void
1261max_idle (unsigned int nthreads)
1262 PROTOTYPE: $
1263 CODE:
1264 eio_set_max_idle (nthreads);
1265
1266void
1267idle_timeout (unsigned int seconds)
1268 PROTOTYPE: $
1269 CODE:
1270 eio_set_idle_timeout (seconds);
1271
1272void
1273max_outstanding (unsigned int maxreqs)
1274 PROTOTYPE: $
1275 CODE:
1276 max_outstanding = maxreqs;
1277
1278void
1279aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1280 PPCODE:
1281{
1282 dREQ;
1283
1284 req->type = EIO_WD_OPEN;
1285 req_set_path1 (req, pathname);
1286
1287 REQ_SEND;
1288}
1289
1290void
1291aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1292 PPCODE:
1293{
1294 dREQ;
1295
1296 req->type = EIO_OPEN;
1297 req_set_path1 (req, pathname);
1298 req->int1 = flags;
1299 req->int2 = mode;
1300
1301 REQ_SEND;
1302}
1303
1304void
1305aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1306 ALIAS:
1307 aio_fsync = EIO_FSYNC
1308 aio_fdatasync = EIO_FDATASYNC
1309 aio_syncfs = EIO_SYNCFS
1310 PPCODE:
1311{
1312 int fd = s_fileno_croak (fh, 0);
1313 dREQ;
1314
1315 req->type = ix;
1316 req->sv1 = newSVsv (fh);
1317 req->int1 = fd;
1318
1319 REQ_SEND;
1320}
1321
1322void
1323aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1324 PPCODE:
1325{
1326 int fd = s_fileno_croak (fh, 0);
1327 dREQ;
1328
1329 req->type = EIO_SYNC_FILE_RANGE;
1330 req->sv1 = newSVsv (fh);
1331 req->int1 = fd;
1332 req->offs = offset;
741 res = sbytes; 1333 req->size = nbytes;
742 } 1334 req->int2 = flags;
743 1335
744# endif 1336 REQ_SEND;
1337}
1338
1339void
1340aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1341 PPCODE:
1342{
1343 int fd = s_fileno_croak (fh, 0);
1344 dREQ;
1345
1346 req->type = EIO_FALLOCATE;
1347 req->sv1 = newSVsv (fh);
1348 req->int1 = fd;
1349 req->int2 = mode;
1350 req->offs = offset;
1351 req->size = len;
1352
1353 REQ_SEND;
1354}
1355
1356void
1357aio_close (SV *fh, SV *callback = &PL_sv_undef)
1358 PPCODE:
1359{
1360 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1361 int fd = s_fileno_croak (fh, 0);
1362 dREQ;
1363
1364 if (expect_false (close_fd < 0))
1365 {
1366 int pipefd [2];
1367
1368 if (
1369#ifdef _WIN32
1370 _pipe (pipefd, 1, _O_BINARY) < 0
745#else 1371#else
746 res = -1; 1372 pipe (pipefd) < 0
747 errno = ENOSYS; 1373 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
748#endif 1374#endif
749 1375 || close (pipefd [1]) < 0
750 if (res < 0
751 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
752#if __solaris
753 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
754#endif
755 )
756 )
757 {
758 /* emulate sendfile. this is a major pain in the ass */
759 dBUF;
760
761 res = 0;
762
763 while (count)
764 {
765 ssize_t cnt;
766
767 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
768
769 if (cnt <= 0)
770 { 1376 )
771 if (cnt && !res) res = -1; 1377 abort (); /*D*/
772 break;
773 }
774 1378
775 cnt = write (ofd, aio_buf, cnt); 1379 close_fd = pipefd [0];
776
777 if (cnt <= 0)
778 {
779 if (cnt && !res) res = -1;
780 break;
781 }
782
783 offset += cnt;
784 res += cnt;
785 count -= cnt;
786 }
787
788 fBUF;
789 }
790
791 return res;
792}
793
794/* read a full directory */
795static int scandir_ (const char *path, void **namesp)
796{
797 DIR *dirp;
798 union
799 {
800 struct dirent d;
801 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
802 } *u;
803 struct dirent *entp;
804 char *name, *names;
805 int memlen = 4096;
806 int memofs = 0;
807 int res = 0;
808 int errorno;
809
810 dirp = opendir (path);
811 if (!dirp)
812 return -1;
813
814 u = malloc (sizeof (*u));
815 names = malloc (memlen);
816
817 if (u && names)
818 for (;;)
819 {
820 errno = 0;
821 readdir_r (dirp, &u->d, &entp);
822
823 if (!entp)
824 break;
825
826 name = entp->d_name;
827
828 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
829 {
830 int len = strlen (name) + 1;
831
832 res++;
833
834 while (memofs + len > memlen)
835 {
836 memlen *= 2;
837 names = realloc (names, memlen);
838 if (!names)
839 break;
840 }
841
842 memcpy (names + memofs, name, len);
843 memofs += len;
844 } 1380 }
845 }
846 1381
847 errorno = errno; 1382 req->type = EIO_DUP2;
848 free (u); 1383 req->int1 = close_fd;
849 closedir (dirp); 1384 req->sv2 = newSVsv (fh);
1385 req->int2 = fd;
850 1386
851 if (errorno) 1387 REQ_SEND;
852 {
853 free (names);
854 errno = errorno;
855 res = -1;
856 }
857
858 *namesp = (void *)names;
859 return res;
860} 1388}
861 1389
862/*****************************************************************************/
863
864static void *aio_proc (void *thr_arg)
865{
866 aio_req req;
867 int type;
868
869 do
870 {
871 pthread_mutex_lock (&reqlock);
872
873 for (;;)
874 {
875 req = reqq_shift (&req_queue);
876
877 if (req)
878 break;
879
880 pthread_cond_wait (&reqwait, &reqlock);
881 }
882
883 pthread_mutex_unlock (&reqlock);
884
885 errno = 0; /* strictly unnecessary */
886 type = req->type; /* remember type for QUIT check */
887
888 if (!(req->flags & FLAG_CANCELLED))
889 switch (type)
890 {
891 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
892 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
893
894 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
895 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
896
897 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
898 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
899 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
900
901 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
902 case REQ_CLOSE: req->result = close (req->fd); break;
903 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
904 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
905 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
906 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
907 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
908
909 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
910 case REQ_FSYNC: req->result = fsync (req->fd); break;
911 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
912
913 case REQ_BUSY:
914 {
915 struct timeval tv;
916
917 tv.tv_sec = req->fd;
918 tv.tv_usec = req->fd2;
919
920 req->result = select (0, 0, 0, 0, &tv);
921 }
922
923 case REQ_GROUP:
924 case REQ_NOP:
925 case REQ_QUIT:
926 break;
927
928 default:
929 req->result = ENOSYS;
930 break;
931 }
932
933 req->errorno = errno;
934
935 pthread_mutex_lock (&reslock);
936
937 if (!reqq_push (&res_queue, req))
938 /* write a dummy byte to the pipe so fh becomes ready */
939 write (respipe [1], &respipe, 1);
940
941 pthread_mutex_unlock (&reslock);
942 }
943 while (type != REQ_QUIT);
944
945 return 0;
946}
947
948/*****************************************************************************/
949
950static void atfork_prepare (void)
951{
952 pthread_mutex_lock (&reqlock);
953 pthread_mutex_lock (&reslock);
954#if !HAVE_PREADWRITE
955 pthread_mutex_lock (&preadwritelock);
956#endif
957#if !HAVE_READDIR_R
958 pthread_mutex_lock (&readdirlock);
959#endif
960}
961
962static void atfork_parent (void)
963{
964#if !HAVE_READDIR_R
965 pthread_mutex_unlock (&readdirlock);
966#endif
967#if !HAVE_PREADWRITE
968 pthread_mutex_unlock (&preadwritelock);
969#endif
970 pthread_mutex_unlock (&reslock);
971 pthread_mutex_unlock (&reqlock);
972}
973
974static void atfork_child (void)
975{
976 aio_req prv;
977
978 started = 0;
979
980 while (prv = reqq_shift (&req_queue))
981 req_free (prv);
982
983 while (prv = reqq_shift (&res_queue))
984 req_free (prv);
985
986 close (respipe [0]);
987 close (respipe [1]);
988 create_pipe ();
989
990 atfork_parent ();
991}
992
993#define dREQ \
994 aio_req req; \
995 int req_pri = next_pri; \
996 next_pri = DEFAULT_PRI + PRI_BIAS; \
997 \
998 if (SvOK (callback) && !SvROK (callback)) \
999 croak ("callback must be undef or of reference type"); \
1000 \
1001 Newz (0, req, 1, aio_cb); \
1002 if (!req) \
1003 croak ("out of memory during aio_req allocation"); \
1004 \
1005 req->callback = newSVsv (callback); \
1006 req->pri = req_pri
1007
1008#define REQ_SEND \
1009 req_send (req); \
1010 \
1011 if (GIMME_V != G_VOID) \
1012 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1013
1014MODULE = IO::AIO PACKAGE = IO::AIO
1015
1016PROTOTYPES: ENABLE
1017
1018BOOT:
1019{
1020 HV *stash = gv_stashpv ("IO::AIO", 1);
1021 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1022 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1023 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1024
1025 create_pipe ();
1026 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1027}
1028
1029void 1390void
1030min_parallel (nthreads) 1391aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1031 int nthreads
1032 PROTOTYPE: $
1033
1034void
1035max_parallel (nthreads)
1036 int nthreads
1037 PROTOTYPE: $
1038
1039int
1040max_outstanding (nreqs)
1041 int nreqs
1042 PROTOTYPE: $
1043 CODE: 1392 PPCODE:
1044 RETVAL = max_outstanding;
1045 max_outstanding = nreqs;
1046
1047void
1048aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1049 SV * pathname
1050 int flags
1051 int mode
1052 SV * callback
1053 PROTOTYPE: $$$;$
1054 PPCODE:
1055{ 1393{
1394 int fd = s_fileno_croak (fh, 0);
1056 dREQ; 1395 dREQ;
1057 1396
1058 req->type = REQ_OPEN; 1397 req->type = EIO_SEEK;
1059 req->data = newSVsv (pathname); 1398 req->sv1 = newSVsv (fh);
1060 req->dataptr = SvPVbyte_nolen (req->data); 1399 req->int1 = fd;
1061 req->fd = flags; 1400 req->offs = SvVAL64 (offset);
1062 req->mode = mode; 1401 req->int2 = whence;
1063 1402
1064 REQ_SEND; 1403 REQ_SEND;
1065} 1404}
1066 1405
1067void 1406void
1068aio_close (fh,callback=&PL_sv_undef) 1407aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1069 SV * fh
1070 SV * callback
1071 PROTOTYPE: $;$
1072 ALIAS: 1408 ALIAS:
1073 aio_close = REQ_CLOSE
1074 aio_fsync = REQ_FSYNC
1075 aio_fdatasync = REQ_FDATASYNC
1076 PPCODE:
1077{
1078 dREQ;
1079
1080 req->type = ix;
1081 req->fh = newSVsv (fh);
1082 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1083
1084 REQ_SEND (req);
1085}
1086
1087void
1088aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1089 SV * fh
1090 UV offset
1091 UV length
1092 SV * data
1093 UV dataoffset
1094 SV * callback
1095 ALIAS:
1096 aio_read = REQ_READ 1409 aio_read = EIO_READ
1097 aio_write = REQ_WRITE 1410 aio_write = EIO_WRITE
1098 PROTOTYPE: $$$$$;$
1099 PPCODE: 1411 PPCODE:
1100{ 1412{
1101 aio_req req;
1102 STRLEN svlen; 1413 STRLEN svlen;
1414 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1103 char *svptr = SvPVbyte (data, svlen); 1415 char *svptr = SvPVbyte (data, svlen);
1104 1416 UV len = SvUV (length);
1105 SvUPGRADE (data, SVt_PV);
1106 SvPOK_on (data);
1107 1417
1108 if (dataoffset < 0) 1418 if (dataoffset < 0)
1109 dataoffset += svlen; 1419 dataoffset += svlen;
1110 1420
1111 if (dataoffset < 0 || dataoffset > svlen) 1421 if (dataoffset < 0 || dataoffset > svlen)
1112 croak ("data offset outside of string"); 1422 croak ("dataoffset outside of data scalar");
1113 1423
1114 if (ix == REQ_WRITE) 1424 if (ix == EIO_WRITE)
1115 { 1425 {
1116 /* write: check length and adjust. */ 1426 /* write: check length and adjust. */
1117 if (length < 0 || length + dataoffset > svlen) 1427 if (!SvOK (length) || len + dataoffset > svlen)
1118 length = svlen - dataoffset; 1428 len = svlen - dataoffset;
1119 } 1429 }
1120 else 1430 else
1121 { 1431 {
1122 /* read: grow scalar as necessary */ 1432 /* read: check type and grow scalar as necessary */
1433 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1123 svptr = SvGROW (data, length + dataoffset); 1434 svptr = sv_grow (data, len + dataoffset + 1);
1435 else if (SvCUR (data) < len + dataoffset)
1436 croak ("length + dataoffset outside of scalar, and cannot grow");
1124 } 1437 }
1125
1126 if (length < 0)
1127 croak ("length must not be negative");
1128 1438
1129 { 1439 {
1130 dREQ; 1440 dREQ;
1131 1441
1132 req->type = ix; 1442 req->type = ix;
1133 req->fh = newSVsv (fh); 1443 req->sv1 = newSVsv (fh);
1134 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1444 req->int1 = fd;
1135 : IoOFP (sv_2io (fh))); 1445 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1136 req->offset = offset; 1446 req->size = len;
1137 req->length = length;
1138 req->data = SvREFCNT_inc (data); 1447 req->sv2 = SvREFCNT_inc (data);
1139 req->dataptr = (char *)svptr + dataoffset; 1448 req->ptr2 = (char *)svptr + dataoffset;
1449 req->stroffset = dataoffset;
1140 1450
1141 if (!SvREADONLY (data)) 1451 if (!SvREADONLY (data))
1142 { 1452 {
1143 SvREADONLY_on (data); 1453 SvREADONLY_on (data);
1144 req->data2ptr = (void *)data; 1454 req->flags |= FLAG_SV2_RO_OFF;
1145 } 1455 }
1146 1456
1147 REQ_SEND; 1457 REQ_SEND;
1148 } 1458 }
1149} 1459}
1150 1460
1151void 1461void
1152aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1462aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1153 SV * out_fh 1463 ALIAS:
1154 SV * in_fh 1464 aio_ioctl = EIO_IOCTL
1155 UV in_offset 1465 aio_fcntl = EIO_FCNTL
1156 UV length
1157 SV * callback
1158 PROTOTYPE: $$$$;$
1159 PPCODE: 1466 PPCODE:
1160{ 1467{
1161 dREQ; 1468 int fd = s_fileno_croak (fh, 0);
1469 char *svptr;
1162 1470
1163 req->type = REQ_SENDFILE; 1471 if (SvPOK (arg) || !SvNIOK (arg))
1164 req->fh = newSVsv (out_fh);
1165 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1166 req->fh2 = newSVsv (in_fh);
1167 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1168 req->offset = in_offset;
1169 req->length = length;
1170
1171 REQ_SEND;
1172}
1173
1174void
1175aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 IV length
1179 SV * callback
1180 PROTOTYPE: $$$;$
1181 PPCODE:
1182{
1183 dREQ;
1184
1185 req->type = REQ_READAHEAD;
1186 req->fh = newSVsv (fh);
1187 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1188 req->offset = offset;
1189 req->length = length;
1190
1191 REQ_SEND;
1192}
1193
1194void
1195aio_stat (fh_or_path,callback=&PL_sv_undef)
1196 SV * fh_or_path
1197 SV * callback
1198 ALIAS:
1199 aio_stat = REQ_STAT
1200 aio_lstat = REQ_LSTAT
1201 PPCODE:
1202{
1203 dREQ;
1204
1205 New (0, req->statdata, 1, Stat_t);
1206 if (!req->statdata)
1207 { 1472 {
1208 req_free (req); 1473 STRLEN svlen;
1209 croak ("out of memory during aio_req->statdata allocation"); 1474 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1210 } 1475#ifdef IOCPARM_LEN
1476 STRLEN need = IOCPARM_LEN (request);
1477#else
1478 STRLEN need = 256;
1479#endif
1211 1480
1212 if (SvPOK (fh_or_path)) 1481 if (svlen < need)
1213 { 1482 svptr = SvGROW (arg, need);
1214 req->type = ix;
1215 req->data = newSVsv (fh_or_path);
1216 req->dataptr = SvPVbyte_nolen (req->data);
1217 } 1483 }
1218 else 1484 else
1485 svptr = (char *)SvIV (arg);
1486
1219 { 1487 {
1488 dREQ;
1489
1220 req->type = REQ_FSTAT; 1490 req->type = ix;
1221 req->fh = newSVsv (fh_or_path); 1491 req->sv1 = newSVsv (fh);
1222 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1492 req->int1 = fd;
1493 req->int2 = (long)request;
1494 req->sv2 = SvREFCNT_inc (arg);
1495 req->ptr2 = svptr;
1496
1497 REQ_SEND;
1223 } 1498 }
1499}
1500
1501void
1502aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1503 ALIAS:
1504 aio_readlink = EIO_READLINK
1505 aio_realpath = EIO_REALPATH
1506 PPCODE:
1507{
1508 dREQ;
1509
1510 req->type = ix;
1511 req_set_path1 (req, pathname);
1224 1512
1225 REQ_SEND; 1513 REQ_SEND;
1226} 1514}
1227 1515
1228void 1516void
1229aio_unlink (pathname,callback=&PL_sv_undef) 1517aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1230 SV * pathname 1518 PPCODE:
1231 SV * callback 1519{
1520 int ifd = s_fileno_croak (in_fh , 0);
1521 int ofd = s_fileno_croak (out_fh, 1);
1522 dREQ;
1523
1524 req->type = EIO_SENDFILE;
1525 req->sv1 = newSVsv (out_fh);
1526 req->int1 = ofd;
1527 req->sv2 = newSVsv (in_fh);
1528 req->int2 = ifd;
1529 req->offs = in_offset;
1530 req->size = length;
1531
1532 REQ_SEND;
1533}
1534
1535void
1536aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1537 PPCODE:
1538{
1539 int fd = s_fileno_croak (fh, 0);
1540 dREQ;
1541
1542 req->type = EIO_READAHEAD;
1543 req->sv1 = newSVsv (fh);
1544 req->int1 = fd;
1545 req->offs = offset;
1546 req->size = length;
1547
1548 REQ_SEND;
1549}
1550
1551void
1552aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1232 ALIAS: 1553 ALIAS:
1554 aio_stat = EIO_STAT
1555 aio_lstat = EIO_LSTAT
1556 aio_statvfs = EIO_STATVFS
1557 PPCODE:
1558{
1559 dREQ;
1560
1561 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1562
1563 REQ_SEND;
1564}
1565
1566UV
1567major (UV dev)
1568 ALIAS:
1569 minor = 1
1570 CODE:
1571 RETVAL = ix ? minor (dev) : major (dev);
1572 OUTPUT:
1573 RETVAL
1574
1575UV
1576makedev (UV maj, UV min)
1577 CODE:
1578 RETVAL = makedev (maj, min);
1579 OUTPUT:
1580 RETVAL
1581
1582void
1583aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1584 PPCODE:
1585{
1586 dREQ;
1587
1588 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1589 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1590 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1591
1592 REQ_SEND;
1593}
1594
1595void
1596aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1597 PPCODE:
1598{
1599 dREQ;
1600
1601 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1602 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1603
1604 REQ_SEND;
1605}
1606
1607void
1608aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 dREQ;
1612
1613 req->int2 = mode;
1614 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1615
1616 REQ_SEND;
1617}
1618
1619void
1620aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1621 PPCODE:
1622{
1623 dREQ;
1624
1625 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1626 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1627 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1628
1629 REQ_SEND;
1630}
1631
1632void
1633aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1634 PPCODE:
1635{
1636 dREQ;
1637
1638 req->type = EIO_READDIR;
1639 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1640
1641 if (flags & EIO_READDIR_DENTS)
1642 req->int1 |= EIO_READDIR_CUSTOM2;
1643
1644 req_set_path1 (req, pathname);
1645
1646 REQ_SEND;
1647}
1648
1649void
1650aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1651 PPCODE:
1652{
1653 dREQ;
1654
1655 req->type = EIO_MKDIR;
1656 req->int2 = mode;
1657 req_set_path1 (req, pathname);
1658
1659 REQ_SEND;
1660}
1661
1662void
1663aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1664 ALIAS:
1233 aio_unlink = REQ_UNLINK 1665 aio_unlink = EIO_UNLINK
1234 aio_rmdir = REQ_RMDIR 1666 aio_rmdir = EIO_RMDIR
1235 aio_readdir = REQ_READDIR 1667 aio_readdir = EIO_READDIR
1236 PPCODE: 1668 PPCODE:
1237{ 1669{
1238 dREQ; 1670 dREQ;
1239 1671
1240 req->type = ix; 1672 req->type = ix;
1241 req->data = newSVsv (pathname); 1673 req_set_path1 (req, pathname);
1242 req->dataptr = SvPVbyte_nolen (req->data); 1674
1243
1244 REQ_SEND; 1675 REQ_SEND;
1245} 1676}
1246 1677
1247void 1678void
1248aio_link (oldpath,newpath,callback=&PL_sv_undef) 1679aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1249 SV * oldpath
1250 SV * newpath
1251 SV * callback
1252 ALIAS: 1680 ALIAS:
1253 aio_link = REQ_LINK 1681 aio_link = EIO_LINK
1254 aio_symlink = REQ_SYMLINK 1682 aio_symlink = EIO_SYMLINK
1255 aio_rename = REQ_RENAME 1683 aio_rename = EIO_RENAME
1256 PPCODE: 1684 PPCODE:
1257{ 1685{
1686 eio_wd wd2 = 0;
1258 dREQ; 1687 dREQ;
1259 1688
1260 req->type = ix; 1689 req->type = ix;
1261 req->fh = newSVsv (oldpath); 1690 req_set_path1 (req, oldpath);
1262 req->data2ptr = SvPVbyte_nolen (req->fh); 1691 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1263 req->data = newSVsv (newpath); 1692 req->int3 = (long)wd2;
1264 req->dataptr = SvPVbyte_nolen (req->data);
1265 1693
1266 REQ_SEND; 1694 REQ_SEND;
1267} 1695}
1268 1696
1269void 1697void
1270aio_busy (delay,callback=&PL_sv_undef) 1698aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1271 double delay
1272 SV * callback
1273 PPCODE: 1699 PPCODE:
1274{ 1700{
1701 eio_wd wd2 = 0;
1275 dREQ; 1702 dREQ;
1276 1703
1277 req->type = REQ_BUSY; 1704 req->type = EIO_RENAME;
1278 req->fd = delay < 0. ? 0 : delay; 1705 req_set_path1 (req, oldpath);
1279 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1706 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1280 1707 req->int2 = flags;
1708 req->int3 = (long)wd2;
1709
1281 REQ_SEND; 1710 REQ_SEND;
1282} 1711}
1283 1712
1284void 1713void
1285aio_group (callback=&PL_sv_undef) 1714aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1286 SV * callback 1715 PPCODE:
1287 PROTOTYPE: ;$ 1716{
1717 dREQ;
1718
1719 req->type = EIO_MKNOD;
1720 req->int2 = (mode_t)mode;
1721 req->offs = dev;
1722 req_set_path1 (req, pathname);
1723
1724 REQ_SEND;
1725}
1726
1727void
1728aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1729 ALIAS:
1730 aio_mtouch = EIO_MTOUCH
1731 aio_msync = EIO_MSYNC
1288 PPCODE: 1732 PPCODE:
1289{ 1733{
1734 STRLEN svlen;
1735 char *svptr = SvPVbyte (data, svlen);
1736 UV len = SvUV (length);
1737
1738 if (flags < 0)
1739 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1740
1741 if (offset < 0)
1742 offset += svlen;
1743
1744 if (offset < 0 || offset > svlen)
1745 croak ("offset outside of scalar");
1746
1747 if (!SvOK (length) || len + offset > svlen)
1748 len = svlen - offset;
1749
1750 {
1751 dREQ;
1752
1753 req->type = ix;
1754 req->sv2 = SvREFCNT_inc (data);
1755 req->ptr2 = (char *)svptr + offset;
1756 req->size = len;
1757 req->int1 = flags;
1758
1759 REQ_SEND;
1760 }
1761}
1762
1763void
1764aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1765 PPCODE:
1766{
1767 STRLEN svlen;
1768 char *svptr = SvPVbyte (data, svlen);
1769 UV len = SvUV (length);
1770
1771 if (offset < 0)
1772 offset += svlen;
1773
1774 if (offset < 0 || offset > svlen)
1775 croak ("offset outside of scalar");
1776
1777 if (!SvOK (length) || len + offset > svlen)
1778 len = svlen - offset;
1779
1780 {
1781 dREQ;
1782
1783 req->type = EIO_MLOCK;
1784 req->sv2 = SvREFCNT_inc (data);
1785 req->ptr2 = (char *)svptr + offset;
1786 req->size = len;
1787
1788 REQ_SEND;
1789 }
1790}
1791
1792void
1793aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1794 PPCODE:
1795{
1796 dREQ;
1797
1798 req->type = EIO_MLOCKALL;
1799 req->int1 = flags;
1800
1801 REQ_SEND;
1802}
1803
1804void
1805aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1806 PPCODE:
1807{
1808 int fd = s_fileno_croak (fh, 0);
1290 dREQ; 1809 dREQ;
1291 1810
1292 req->type = REQ_GROUP; 1811 req->type = EIO_CUSTOM;
1293 req_send (req); 1812 req->sv1 = newSVsv (fh);
1813 req->int1 = fd;
1294 1814
1295 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1815 req->feed = fiemap;
1296} 1816#if HAVE_FIEMAP
1817 /* keep our fingers crossed that the next two types are 64 bit */
1818 req->offs = start;
1819 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1820 req->int2 = flags;
1821 req->int3 = SvOK (count) ? SvIV (count) : -1;
1822#endif
1297 1823
1824 REQ_SEND;
1825}
1826
1298void 1827void
1299aio_nop (callback=&PL_sv_undef) 1828aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1300 SV * callback 1829 PPCODE:
1830{
1831 char *svptr = 0;
1832
1833 sv_clear_foreign (data);
1834
1835 if (length) /* known length, directly read into scalar */
1836 {
1837 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1838 svptr = sv_grow (data, length + 1);
1839 else if (SvCUR (data) < length)
1840 croak ("length outside of scalar, and cannot grow");
1841 else
1842 svptr = SvPVbyte_nolen (data);
1843 }
1844
1845 {
1846 dREQ;
1847
1848 req->type = EIO_SLURP;
1849 req_set_path1 (req, pathname);
1850 req->offs = offset;
1851 req->size = length;
1852 req->sv2 = SvREFCNT_inc (data);
1853 req->ptr2 = svptr;
1854
1855 if (!SvREADONLY (data))
1856 {
1857 SvREADONLY_on (data);
1858 req->flags |= FLAG_SV2_RO_OFF;
1859 }
1860
1861 REQ_SEND;
1862 }
1863}
1864
1865void
1866aio_busy (double delay, SV *callback = &PL_sv_undef)
1301 PPCODE: 1867 PPCODE:
1302{ 1868{
1303 dREQ; 1869 dREQ;
1304 1870
1305 req->type = REQ_NOP; 1871 req->type = EIO_BUSY;
1872 req->nv1 = delay < 0. ? 0. : delay;
1306 1873
1307 REQ_SEND; 1874 REQ_SEND;
1308} 1875}
1309 1876
1310void 1877void
1311aioreq_pri (int pri = DEFAULT_PRI) 1878aio_group (SV *callback = &PL_sv_undef)
1312 CODE: 1879 PPCODE:
1880{
1881 dREQ;
1882
1883 req->type = EIO_GROUP;
1884
1885 PUTBACK;
1886 req_submit (req);
1887 SPAGAIN;
1888
1889 XPUSHs (req_sv (req, aio_grp_stash));
1890}
1891
1892void
1893aio_nop (SV *callback = &PL_sv_undef)
1894 ALIAS:
1895 aio_nop = EIO_NOP
1896 aio_sync = EIO_SYNC
1897 PPCODE:
1898{
1899 dREQ;
1900
1901 req->type = ix;
1902
1903 REQ_SEND;
1904}
1905
1906int
1907aioreq_pri (int pri = NO_INIT)
1908 CODE:
1909 RETVAL = next_pri;
1910 if (items > 0)
1911 {
1313 if (pri < PRI_MIN) pri = PRI_MIN; 1912 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1314 if (pri > PRI_MAX) pri = PRI_MAX; 1913 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1315 next_pri = pri + PRI_BIAS; 1914 next_pri = pri;
1915 }
1916 OUTPUT:
1917 RETVAL
1316 1918
1317void 1919void
1318aioreq_nice (int nice = 0) 1920aioreq_nice (int nice = 0)
1319 CODE: 1921 CODE:
1320 nice = next_pri - nice; 1922 nice = next_pri - nice;
1321 if (nice < PRI_MIN) nice = PRI_MIN; 1923 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1322 if (nice > PRI_MAX) nice = PRI_MAX; 1924 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1323 next_pri = nice + PRI_BIAS; 1925 next_pri = nice;
1324 1926
1325void 1927void
1326flush () 1928flush ()
1327 PROTOTYPE:
1328 CODE: 1929 CODE:
1329 while (nreqs) 1930 while (eio_nreqs ())
1330 { 1931 {
1331 poll_wait (); 1932 poll_wait ();
1332 poll_cb (); 1933 poll_cb ();
1333 } 1934 }
1334 1935
1335void 1936int
1336poll() 1937poll ()
1337 PROTOTYPE:
1338 CODE: 1938 CODE:
1339 if (nreqs)
1340 {
1341 poll_wait (); 1939 poll_wait ();
1342 poll_cb (); 1940 RETVAL = poll_cb ();
1343 }
1344
1345int
1346poll_fileno()
1347 PROTOTYPE:
1348 CODE:
1349 RETVAL = respipe [0];
1350 OUTPUT: 1941 OUTPUT:
1351 RETVAL 1942 RETVAL
1352 1943
1353int 1944int
1945poll_fileno ()
1946 CODE:
1947 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT:
1949 RETVAL
1950
1951int
1354poll_cb(...) 1952poll_cb (...)
1355 PROTOTYPE: 1953 PROTOTYPE:
1356 CODE: 1954 CODE:
1357 RETVAL = poll_cb (); 1955 RETVAL = poll_cb ();
1358 OUTPUT: 1956 OUTPUT:
1359 RETVAL 1957 RETVAL
1360 1958
1361void 1959void
1362poll_wait() 1960poll_wait ()
1363 PROTOTYPE:
1364 CODE: 1961 CODE:
1365 if (nreqs)
1366 poll_wait (); 1962 poll_wait ();
1367 1963
1368int 1964int
1369nreqs() 1965nreqs ()
1370 PROTOTYPE:
1371 CODE: 1966 CODE:
1372 RETVAL = nreqs; 1967 RETVAL = eio_nreqs ();
1373 OUTPUT: 1968 OUTPUT:
1374 RETVAL 1969 RETVAL
1375 1970
1971int
1972nready ()
1973 CODE:
1974 RETVAL = eio_nready ();
1975 OUTPUT:
1976 RETVAL
1977
1978int
1979npending ()
1980 CODE:
1981 RETVAL = eio_npending ();
1982 OUTPUT:
1983 RETVAL
1984
1985int
1986nthreads ()
1987 CODE:
1988 RETVAL = eio_nthreads ();
1989 OUTPUT:
1990 RETVAL
1991
1992int
1993fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1994 CODE:
1995 RETVAL = posix_fadvise (fh, offset, length, advice);
1996 OUTPUT:
1997 RETVAL
1998
1999IV
2000sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2001 CODE:
2002 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2003 OUTPUT:
2004 RETVAL
2005
2006void
2007mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2008 PPCODE:
2009 sv_clear_foreign (scalar);
2010{
2011 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2012 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2013 if (addr == (void *)-1)
2014 XSRETURN_NO;
2015
2016 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2017
2018 if (!(prot & PROT_WRITE))
2019 SvREADONLY_on (scalar);
2020
2021 XSRETURN_YES;
2022}
2023
2024void
2025munmap (SV *scalar)
2026 CODE:
2027 sv_clear_foreign (scalar);
2028
2029int
2030madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2031 ALIAS:
2032 mprotect = 1
2033 CODE:
2034{
2035 STRLEN svlen;
2036 void *addr = SvPVbyte (scalar, svlen);
2037 STRLEN len = SvUV (length);
2038
2039 if (offset < 0)
2040 offset += svlen;
2041
2042 if (offset < 0 || offset > svlen)
2043 croak ("offset outside of scalar");
2044
2045 if (!SvOK (length) || len + offset > svlen)
2046 len = svlen - offset;
2047
2048 addr = (void *)(((intptr_t)addr) + offset);
2049 eio_page_align (&addr, &len);
2050
2051 switch (ix)
2052 {
2053 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2054 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2055 }
2056}
2057 OUTPUT:
2058 RETVAL
2059
2060int
2061munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2062 CODE:
2063{
2064 STRLEN svlen;
2065 void *addr = SvPVbyte (scalar, svlen);
2066 size_t len = SvUV (length);
2067
2068 if (offset < 0)
2069 offset += svlen;
2070
2071 if (offset < 0 || offset > svlen)
2072 croak ("offset outside of scalar");
2073
2074 if (!SvOK (length) || len + offset > svlen)
2075 len = svlen - offset;
2076
2077 addr = (void *)(((intptr_t)addr) + offset);
2078 eio_page_align (&addr, &len);
2079#if _POSIX_MEMLOCK_RANGE
2080 RETVAL = munlock (addr, len);
2081#else
2082 RETVAL = EIO_ENOSYS ();
2083#endif
2084}
2085 OUTPUT:
2086 RETVAL
2087
2088int
2089munlockall ()
2090 CODE:
2091#if _POSIX_MEMLOCK
2092 munlockall ();
2093#else
2094 RETVAL = EIO_ENOSYS ();
2095#endif
2096 OUTPUT:
2097 RETVAL
2098
2099int
2100splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2101 CODE:
2102{
2103#if HAVE_LINUX_SPLICE
2104 loff_t off_in_, off_out_;
2105 RETVAL = splice (
2106 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2107 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2108 length, flags
2109 );
2110#else
2111 RETVAL = EIO_ENOSYS ();
2112#endif
2113}
2114 OUTPUT:
2115 RETVAL
2116
2117int
2118tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2119 CODE:
2120#if HAVE_LINUX_SPLICE
2121 RETVAL = tee (rfh, wfh, length, flags);
2122#else
2123 RETVAL = EIO_ENOSYS ();
2124#endif
2125 OUTPUT:
2126 RETVAL
2127
2128int
2129pipesize (aio_rfd rfh, int new_size = -1)
2130 PROTOTYPE: $;$
2131 CODE:
2132#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2133 if (new_size >= 0)
2134 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2135 else
2136 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2137#else
2138 errno = ENOSYS;
2139 RETVAL = -1;
2140#endif
2141 OUTPUT:
2142 RETVAL
2143
2144void
2145pipe2 (int flags = 0)
2146 PROTOTYPE: ;$
2147 PPCODE:
2148{
2149 int fd[2];
2150 int res;
2151
2152 if (flags)
2153#if HAVE_PIPE2
2154 res = pipe2 (fd, flags);
2155#else
2156 res = (errno = ENOSYS, -1);
2157#endif
2158 else
2159 res = pipe (fd);
2160
2161 if (!res)
2162 {
2163 EXTEND (SP, 2);
2164 PUSHs (newmortalFH (fd[0], O_RDONLY));
2165 PUSHs (newmortalFH (fd[1], O_WRONLY));
2166 }
2167}
2168
2169void
2170eventfd (unsigned int initval = 0, int flags = 0)
2171 PPCODE:
2172{
2173 int fd;
2174#if HAVE_EVENTFD
2175 fd = eventfd (initval, flags);
2176#else
2177 fd = (errno = ENOSYS, -1);
2178#endif
2179
2180 XPUSHs (newmortalFH (fd, O_RDWR));
2181}
2182
2183UV
2184get_fdlimit ()
2185 CODE:
2186#if HAVE_RLIMITS
2187 struct rlimit rl;
2188 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2189 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2190#endif
2191 XSRETURN_UNDEF;
2192 OUTPUT:
2193 RETVAL
2194
2195void
2196min_fdlimit (UV limit = 0x7fffffffU)
2197 CODE:
2198{
2199#if HAVE_RLIMITS
2200 struct rlimit rl;
2201 rlim_t orig_rlim_max;
2202 UV bit;
2203
2204 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2205 goto fail;
2206
2207 if (rl.rlim_cur == RLIM_INFINITY)
2208 XSRETURN_YES;
2209
2210 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2211
2212 if (rl.rlim_cur < limit)
2213 {
2214 rl.rlim_cur = limit;
2215
2216 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2217 rl.rlim_max = rl.rlim_cur;
2218 }
2219
2220 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2221 XSRETURN_YES;
2222
2223 if (errno == EPERM)
2224 {
2225 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2226 /* our limit overflows a system-wide limit */
2227 /* try an adaptive algorithm, but do not lower the hardlimit */
2228 rl.rlim_max = 0;
2229 for (bit = 0x40000000U; bit; bit >>= 1)
2230 {
2231 rl.rlim_max |= bit;
2232 rl.rlim_cur = rl.rlim_max;
2233
2234 /* nevr decrease the hard limit */
2235 if (rl.rlim_max < orig_rlim_max)
2236 break;
2237
2238 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2239 rl.rlim_max &= ~bit; /* too high, remove bit again */
2240 }
2241
2242 /* now, raise the soft limit to the max permitted */
2243 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2244 {
2245 rl.rlim_cur = rl.rlim_max;
2246 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2247 errno = EPERM;
2248 }
2249 }
2250#endif
2251 fail:
2252 XSRETURN_UNDEF;
2253}
2254
2255void _on_next_submit (SV *cb)
2256 CODE:
2257 SvREFCNT_dec (on_next_submit);
2258 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2259
1376PROTOTYPES: DISABLE 2260PROTOTYPES: DISABLE
2261
2262MODULE = IO::AIO PACKAGE = IO::AIO::WD
2263
2264BOOT:
2265{
2266 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2267 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2268}
2269
2270void
2271DESTROY (SV *self)
2272 CODE:
2273{
2274 aio_wd wd = SvAIO_WD (self);
2275#if HAVE_AT
2276 {
2277 SV *callback = &PL_sv_undef;
2278 dREQ; /* clobbers next_pri :/ */
2279 next_pri = req->pri; /* restore next_pri */
2280 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2281 req->type = EIO_WD_CLOSE;
2282 req->wd = wd;
2283 REQ_SEND;
2284 }
2285#else
2286 eio_wd_close_sync (wd);
2287#endif
2288}
1377 2289
1378MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2290MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1379 2291
1380void 2292void
1381cancel (aio_req_ornot req) 2293cancel (aio_req_ornot req)
1382 CODE: 2294 CODE:
1383 req_cancel (req); 2295 eio_cancel (req);
1384 2296
1385void 2297void
1386cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2298cb (aio_req_ornot req, SV *callback = NO_INIT)
1387 CODE: 2299 PPCODE:
2300{
2301 if (GIMME_V != G_VOID)
2302 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2303
2304 if (items > 1)
2305 {
2306 SV *cb_cv = get_cb (callback);
2307
1388 SvREFCNT_dec (req->callback); 2308 SvREFCNT_dec (req->callback);
1389 req->callback = newSVsv (callback); 2309 req->callback = SvREFCNT_inc (cb_cv);
2310 }
2311}
1390 2312
1391MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2313MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1392 2314
1393void 2315void
1394add (aio_req grp, ...) 2316add (aio_req grp, ...)
1395 PPCODE: 2317 PPCODE:
1396{ 2318{
1397 int i; 2319 int i;
1398 aio_req req;
1399 2320
1400 if (grp->fd == 2) 2321 if (grp->int1 == 2)
1401 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2322 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1402 2323
1403 for (i = 1; i < items; ++i ) 2324 for (i = 1; i < items; ++i )
1404 { 2325 {
2326 aio_req req;
2327
1405 if (GIMME_V != G_VOID) 2328 if (GIMME_V != G_VOID)
1406 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2329 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1407 2330
1408 req = SvAIO_REQ (ST (i)); 2331 req = SvAIO_REQ (ST (i));
1409 2332
1410 if (req) 2333 if (req)
1411 { 2334 eio_grp_add (grp, req);
1412 ++grp->length;
1413 req->grp = grp;
1414
1415 req->grp_prev = 0;
1416 req->grp_next = grp->grp_first;
1417
1418 if (grp->grp_first)
1419 grp->grp_first->grp_prev = req;
1420
1421 grp->grp_first = req;
1422 }
1423 } 2335 }
1424} 2336}
2337
2338void
2339cancel_subs (aio_req_ornot req)
2340 CODE:
2341 req_cancel_subs (req);
1425 2342
1426void 2343void
1427result (aio_req grp, ...) 2344result (aio_req grp, ...)
1428 CODE: 2345 CODE:
1429{ 2346{
1430 int i; 2347 int i;
2348 AV *av;
2349
2350 grp->errorno = errno;
2351
1431 AV *av = newAV (); 2352 av = newAV ();
2353 av_extend (av, items - 1);
1432 2354
1433 for (i = 1; i < items; ++i ) 2355 for (i = 1; i < items; ++i )
1434 av_push (av, newSVsv (ST (i))); 2356 av_push (av, newSVsv (ST (i)));
1435 2357
1436 SvREFCNT_dec (grp->data); 2358 SvREFCNT_dec (grp->sv1);
1437 grp->data = (SV *)av; 2359 grp->sv1 = (SV *)av;
1438} 2360}
2361
2362void
2363errno (aio_req grp, int errorno = errno)
2364 CODE:
2365 grp->errorno = errorno;
1439 2366
1440void 2367void
1441limit (aio_req grp, int limit) 2368limit (aio_req grp, int limit)
1442 CODE: 2369 CODE:
1443 grp->fd2 = limit; 2370 eio_grp_limit (grp, limit);
1444 aio_grp_feed (grp);
1445 2371
1446void 2372void
1447feed (aio_req grp, SV *callback=&PL_sv_undef) 2373feed (aio_req grp, SV *callback = &PL_sv_undef)
1448 CODE: 2374 CODE:
1449{ 2375{
1450 SvREFCNT_dec (grp->fh2); 2376 SvREFCNT_dec (grp->sv2);
1451 grp->fh2 = newSVsv (callback); 2377 grp->sv2 = newSVsv (callback);
2378 grp->feed = aio_grp_feed;
1452 2379
1453 if (grp->fd2 <= 0) 2380 if (grp->int2 <= 0)
1454 grp->fd2 = 2; 2381 grp->int2 = 2;
1455 2382
1456 aio_grp_feed (grp); 2383 eio_grp_limit (grp, grp->int2);
1457} 2384}
1458 2385

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