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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.104 by root, Sun Jul 8 11:05:36 2007 UTC vs.
Revision 1.231 by root, Wed Feb 11 19:32:36 2015 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
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. on't complain if this fails for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
36
37/* perl namespace pollution */
38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
18#ifdef _WIN32 46#ifdef _WIN32
19 47
20# define SIGIO 0 48 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 49
22#undef malloc 50 #undef malloc
23#undef free 51 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 52 #undef open
27# undef read 53 #undef read
28# undef write 54 #undef write
29# undef send 55 #undef send
30# undef recv 56 #undef recv
31# undef stat 57 #undef stat
58 #undef lstat
32# undef fstat 59 #undef fstat
33# define lstat stat
34# undef truncate 60 #undef truncate
35# undef ftruncate 61 #undef ftruncate
36# undef open 62 #undef open
63 #undef link
37# undef close 64 #undef close
38# undef unlink 65 #undef unlink
66 #undef mkdir
39# undef rmdir 67 #undef rmdir
40# undef rename 68 #undef rename
41# undef lseek 69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
42 79
43# define chown(a,b,c) (errno = ENOSYS, -1) 80 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 81 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 82
57#else 83#else
58 84
59# include "autoconf/config.h"
60# include <sys/time.h> 85 #include <sys/time.h>
61# include <sys/select.h> 86 #include <sys/select.h>
62# include <unistd.h> 87 #include <unistd.h>
63# include <utime.h> 88 #include <utime.h>
64# include <signal.h> 89 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 90
67#endif 91 #define EIO_STRUCT_STAT Stat_t
68 92
69#if HAVE_SENDFILE 93#endif
70# if __linux 94
71# include <sys/sendfile.h> 95/*****************************************************************************/
72# elif __freebsd 96
73# include <sys/socket.h> 97#if __GNUC__ >= 3
74# include <sys/uio.h> 98# define expect(expr,value) __builtin_expect ((expr),(value))
75# elif __hpux 99#else
76# include <sys/socket.h> 100# define expect(expr,value) (expr)
77# elif __solaris /* not yet */ 101#endif
78# include <sys/sendfile.h> 102
103#define expect_false(expr) expect ((expr) != 0, 0)
104#define expect_true(expr) expect ((expr) != 0, 1)
105
106/*****************************************************************************/
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109typedef int aio_rfd; /* read file desriptor */
110typedef int aio_wfd; /* write file descriptor */
111
112static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
113
114#define EIO_REQ_MEMBERS \
115 SV *callback; \
116 SV *sv1, *sv2; \
117 SV *sv3, *sv4; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126static int req_invoke (eio_req *req);
127#define EIO_FINISH(req) req_invoke (req)
128static void req_destroy (eio_req *grp);
129#define EIO_DESTROY(req) req_destroy (req)
130
131#include "libeio/eio.c"
132
133#if !HAVE_POSIX_FADVISE
134# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#if !HAVE_POSIX_MADVISE
138# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
139#endif
140
141#ifndef MAP_ANONYMOUS
142# ifdef MAP_ANON
143# define MAP_ANONYMOUS MAP_ANON
79# else 144# else
80# error sendfile support requested but not available 145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 146# endif
82#endif 147#endif
83 148
84/* number of seconds after which idle threads exit */ 149/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 150#include "def0.h"
86 151
87/* used for struct dirent, AIX doesn't provide it */ 152#ifndef makedev
88#ifndef NAME_MAX 153# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 154#endif
91 155#ifndef major
92/* buffer size for various temporary buffers */ 156# define major(dev) ((dev) >> 8)
93#define AIO_BUFSIZE 65536
94
95/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8
97# define SvVAL64 SvIV
98#else
99# define SvVAL64 SvNV
100#endif 157#endif
158#ifndef minor
159# define minor(dev) ((dev) & 0xff)
160#endif
101 161
102#define dBUF \ 162#if PAGESIZE <= 0
103 char *aio_buf; \ 163# define PAGESIZE sysconf (_SC_PAGESIZE)
104 X_LOCK (wrklock); \ 164#endif
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
106 X_UNLOCK (wrklock); \
107 if (!aio_buf) \
108 return -1;
109 165
110typedef SV SV8; /* byte-sv, used for argument-checking */ 166/*****************************************************************************/
111 167
112enum { 168static void
113 REQ_QUIT, 169fiemap (eio_req *req)
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128};
129
130#define AIO_REQ_KLASS "IO::AIO::REQ"
131#define AIO_GRP_KLASS "IO::AIO::GRP"
132
133typedef struct aio_cb
134{ 170{
135 struct aio_cb *volatile next; 171 req->result = -1;
136 172
137 SV *callback; 173#if HAVE_FIEMAP
138 SV *sv1, *sv2; 174 /* assume some c99 */
139 void *ptr1, *ptr2; 175 struct fiemap *fiemap = 0;
140 off_t offs; 176 size_t end_offset;
141 size_t size; 177 int count = req->int3;
142 ssize_t result;
143 double nv1, nv2;
144 178
145 STRLEN stroffset; 179 req->flags |= EIO_FLAG_PTR1_FREE;
146 int type;
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150 180
151 unsigned char flags; 181 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
152 unsigned char pri; 182 /* increase in 3.5kb steps */
183 if (count < 0)
184 count = 8;
153 185
154 SV *self; /* the perl counterpart of this request, if any */ 186 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 187 errno = ENOMEM;
156} aio_cb; 188 if (!fiemap)
157
158enum {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162};
163
164typedef aio_cb *aio_req;
165typedef aio_cb *aio_req_ornot;
166
167enum {
168 PRI_MIN = -4,
169 PRI_MAX = 4,
170
171 DEFAULT_PRI = 0,
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187
188static thread_t main_tid;
189static int main_sig;
190static int block_sig_level;
191
192void block_sig ()
193{
194 sigset_t ss;
195
196 if (block_sig_level++)
197 return; 189 return;
198 190
199 if (!main_sig) 191 req->ptr1 = fiemap;
192
193 fiemap->fm_start = req->offs;
194 fiemap->fm_length = req->size;
195 fiemap->fm_flags = req->int2;
196 fiemap->fm_extent_count = count;
197
198 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
200 return; 199 return;
201 200
202 sigemptyset (&ss); 201 if (req->int3 >= 0 /* not autosizing */
203 sigaddset (&ss, main_sig); 202 || !fiemap->fm_mapped_extents /* no more extents */
204 pthread_sigmask (SIG_BLOCK, &ss, 0); 203 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205} 204 goto done;
206 205
207void unblock_sig () 206 /* else we have to loop -
208{ 207 * it would be tempting (actually I tried that first) to just query the
209 sigset_t ss; 208 * number of extents needed, but linux often feels like not returning all
209 * extents, without telling us it left any out. this complicates
210 * this quite a bit.
211 */
210 212
211 if (--block_sig_level) 213 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
212 return;
213 214
214 if (!main_sig) 215 for (;;)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 { 216 {
247 closedir (wrk->dirp); 217 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
248 wrk->dirp = 0; 218 char scratch[3072];
249 } 219 struct fiemap *incmap = (struct fiemap *)scratch;
250 220
251 if (wrk->dbuf) 221 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
252 { 222 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
253 free (wrk->dbuf); 223 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
254 wrk->dbuf = 0; 224 incmap->fm_flags = fiemap->fm_flags;
255 } 225 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
256}
257 226
258static void worker_free (worker *wrk) 227 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0; 228 return;
353 229
354 --q->size; 230 if (!incmap->fm_mapped_extents)
231 goto done;
355 232
356 for (pri = NUM_PRI; pri--; ) 233 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
357 { 234 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
358 aio_req req = q->qs[pri]; 235 errno = ENOMEM;
359
360 if (req) 236 if (!fiemap)
237 return;
238
239 req->ptr1 = fiemap;
240
241 for (count = 0; count < incmap->fm_mapped_extents; ++count)
361 { 242 {
362 if (!(q->qs[pri] = req->next)) 243 struct fiemap_extent *e = incmap->fm_extents + count;
363 q->qe[pri] = 0;
364 244
365 return req; 245 if (e->fe_logical + e->fe_length >= end_offset)
246 goto done;
247
248 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
249
250 if (e->fe_flags & FIEMAP_EXTENT_LAST)
251 goto done;
252
366 } 253 }
367 } 254 }
368 255
369 abort (); 256done:
370} 257 req->result = 0;
371 258
372static int poll_cb (); 259#else
373static int req_invoke (aio_req req); 260 errno = ENOSYS;
261#endif
262}
263
264/*****************************************************************************/
265
266enum {
267 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
268};
269
270typedef eio_req *aio_req;
271typedef eio_req *aio_req_ornot;
272typedef eio_wd aio_wd;
273
274static SV *on_next_submit;
275static int next_pri = EIO_PRI_DEFAULT;
276static int max_outstanding;
277
278static s_epipe respipe;
279
374static void req_destroy (aio_req req); 280static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 281static void req_cancel (aio_req req);
376 282
283static void
284want_poll (void)
285{
286 /* write a dummy byte to the pipe so fh becomes ready */
287 s_epipe_signal (&respipe);
288}
289
290static void
291done_poll (void)
292{
293 /* read any signals sent by the worker threads */
294 s_epipe_drain (&respipe);
295}
296
377/* must be called at most once */ 297/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 298static SV *
299req_sv (aio_req req, HV *stash)
379{ 300{
380 if (!req->self) 301 if (!req->self)
381 { 302 {
382 req->self = (SV *)newHV (); 303 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 305 }
385 306
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 307 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 308}
388 309
389static aio_req SvAIO_REQ (SV *sv) 310static SV *
311newSVaio_wd (aio_wd wd)
312{
313 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
314}
315
316static aio_req
317SvAIO_REQ (SV *sv)
390{ 318{
391 MAGIC *mg; 319 MAGIC *mg;
392 320
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 321 if (!SvROK (sv)
322 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
323 || (SvSTASH (SvRV (sv)) != aio_grp_stash
324 && SvSTASH (SvRV (sv)) != aio_req_stash
325 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 326 croak ("object of class IO::AIO::REQ expected");
395 327
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 328 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 329
398 return mg ? (aio_req)mg->mg_ptr : 0; 330 return mg ? (aio_req)mg->mg_ptr : 0;
399} 331}
400 332
333static aio_wd
334SvAIO_WD (SV *sv)
335{
336 if (!SvROK (sv)
337 || SvTYPE (SvRV (sv)) != SVt_PVMG
338 || SvSTASH (SvRV (sv)) != aio_wd_stash)
339 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
340
341 return (aio_wd)(long)SvIVX (SvRV (sv));
342}
343
344static void
401static void aio_grp_feed (aio_req grp) 345aio_grp_feed (aio_req grp)
402{ 346{
403 block_sig (); 347 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 348 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 349 dSP;
412 350
413 ENTER; 351 ENTER;
414 SAVETMPS; 352 SAVETMPS;
415 PUSHMARK (SP); 353 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 354 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 355 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 356 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 357 SPAGAIN;
420 FREETMPS; 358 FREETMPS;
421 LEAVE; 359 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 360 }
432
433 unblock_sig ();
434} 361}
435 362
436static void aio_grp_dec (aio_req grp) 363static void
364req_submit (eio_req *req)
437{ 365{
438 --grp->size; 366 eio_submit (req);
439 367
440 /* call feeder, if applicable */ 368 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 369 {
446 block_sig (); 370 dSP;
371 SV *cb = sv_2mortal (on_next_submit);
447 372
448 if (!req_invoke (grp)) 373 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 374
455 req_destroy (grp); 375 PUSHMARK (SP);
456 unblock_sig (); 376 PUTBACK;
377 call_sv (cb, G_DISCARD | G_EVAL);
457 } 378 }
458} 379}
459 380
381static int
460static int req_invoke (aio_req req) 382req_invoke (eio_req *req)
461{ 383{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 384 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 385 SvREADONLY_off (req->sv2);
466 386
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 387 if (!EIO_CANCELLED (req) && req->callback)
468 { 388 {
389 dSP;
390 static SV *sv_result_cache; /* caches the result integer SV */
391 SV *sv_result;
392
469 ENTER; 393 ENTER;
470 SAVETMPS; 394 SAVETMPS;
471 PUSHMARK (SP); 395 PUSHMARK (SP);
472 EXTEND (SP, 1); 396 EXTEND (SP, 1);
473 397
398 /* do not recreate the result IV from scratch each time */
399 if (expect_true (sv_result_cache))
400 {
401 sv_result = sv_result_cache; sv_result_cache = 0;
402 SvIV_set (sv_result, req->result);
403 SvIOK_only (sv_result);
404 }
405 else
406 {
407 sv_result = newSViv (req->result);
408 SvREADONLY_on (sv_result);
409 }
410
474 switch (req->type) 411 switch (req->type)
475 { 412 {
413 case EIO_WD_OPEN:
414 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
415 break;
416
476 case REQ_READDIR: 417 case EIO_READDIR:
477 { 418 {
478 SV *rv = &PL_sv_undef; 419 SV *rv = &PL_sv_undef;
479 420
480 if (req->result >= 0) 421 if (req->result >= 0)
481 { 422 {
482 int i; 423 int i;
483 char *buf = req->ptr2; 424 char *names = (char *)req->ptr2;
425 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 426 AV *av = newAV ();
485 427
486 av_extend (av, req->result - 1); 428 av_extend (av, req->result - 1);
487 429
488 for (i = 0; i < req->result; ++i) 430 for (i = 0; i < req->result; ++i)
489 { 431 {
490 SV *sv = newSVpv (buf, 0); 432 if (req->int1 & EIO_READDIR_DENTS)
433 {
434 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 435
436 if (req->int1 & EIO_READDIR_CUSTOM2)
437 {
438 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
439 AV *avent = newAV ();
440
441 av_extend (avent, 2);
442
443 if (!sv_type [ent->type])
444 {
445 sv_type [ent->type] = newSViv (ent->type);
446 SvREADONLY_on (sv_type [ent->type]);
447 }
448
449 av_store (avent, 0, namesv);
450 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
451 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
452
453 av_store (av, i, newRV_noinc ((SV *)avent));
454 }
455 else
492 av_store (av, i, sv); 456 av_store (av, i, namesv);
457
458 ++ent;
459 }
460 else
461 {
462 SV *name = newSVpv (names, 0);
463 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 464 names += SvCUR (name) + 1;
465 }
494 } 466 }
495 467
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 468 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 469 }
498 470
499 PUSHs (rv); 471 PUSHs (rv);
472
473 if (req->int1 & EIO_READDIR_CUSTOM1)
474 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 475 }
501 break; 476 break;
502 477
503 case REQ_OPEN: 478 case EIO_OPEN:
504 { 479 {
505 /* convert fd to fh */ 480 /* convert fd to fh */
506 SV *fh; 481 SV *fh = &PL_sv_undef;
507 482
508 PUSHs (sv_2mortal (newSViv (req->result))); 483 if (req->result >= 0)
509 PUTBACK; 484 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 485 GV *gv = (GV *)sv_newmortal ();
511 SPAGAIN; 486 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
487 char sym [64];
488 int symlen;
489
490 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
491 gv_init (gv, aio_stash, sym, symlen, 0);
512 492
513 fh = POPs; 493 symlen = snprintf (
514 PUSHMARK (SP); 494 sym,
495 sizeof (sym),
496 "%s&=%d",
497 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
498 (int)req->result
499 );
500
501 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
502 fh = (SV *)gv;
503 }
504
515 XPUSHs (fh); 505 PUSHs (fh);
516 } 506 }
517 break; 507 break;
518 508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
511 {
512 SV *rv = &PL_sv_undef;
513
514#ifndef _WIN32
515 if (req->result >= 0)
516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
518 HV *hv = newHV ();
519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
520 * chooses to make it a struct.
521 */
522 unsigned long fsid = 0;
523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
524
525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
526
527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
538 }
539#endif
540
541 PUSHs (rv);
542 }
543
544 break;
545
519 case REQ_GROUP: 546 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
521 548
522 if (req->sv1) 549 if (req->sv1)
523 { 550 {
524 int i; 551 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
530 } 557 }
531 break; 558 break;
532 559
533 case REQ_NOP: 560 case EIO_NOP:
534 case REQ_BUSY: 561 case EIO_BUSY:
535 break; 562 break;
536 563
537 case REQ_READLINK: 564 case EIO_READLINK:
565 case EIO_REALPATH:
538 if (req->result > 0) 566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
539 { 598 {
540 SvCUR_set (req->sv2, req->result); 599#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2); 600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
543 } 631 }
632 else
633 PUSHs (sv_result);
544 break; 634 break;
545 635
546 case REQ_STAT: 636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
547 case REQ_LSTAT: 637 if (req->result > 0)
548 case REQ_FSTAT: 638 SvIV_set (sv_result, 0);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 639 /* FALLTHROUGH */
550 PL_laststatval = req->result;
551 PL_statcache = *(Stat_t *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result)));
553 break;
554
555 case REQ_READ:
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result)));
559 break;
560 640
561 default: 641 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
563 break; 643 break;
564 } 644 }
565 645
566 errno = req->errorno; 646 errno = req->errorno;
567 647
568 PUTBACK; 648 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
571 656
572 FREETMPS; 657 FREETMPS;
573 LEAVE; 658 LEAVE;
659
660 PUTBACK;
574 } 661 }
575 662
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 663 return !!SvTRUE (ERRSV);
591} 664}
592 665
666static void
593static void req_destroy (aio_req req) 667req_destroy (aio_req req)
594{ 668{
595 if (req->self) 669 if (req->self)
596 { 670 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
599 } 673 }
600 674
601 SvREFCNT_dec (req->sv1); 675 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
604 680
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 681 free (req);
609} 682}
610 683
684static void
611static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
612{ 686{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
616 return; 688 return;
617 689
618 SvREFCNT_dec (grp->sv2); 690 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 691 grp->sv2 = 0;
620 692
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 694}
624 695
625static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
626{ 698{
627 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
628 700 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 701}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637 702
638static void 703static void
639create_pipe (int fd[2]) 704poll_wait (void)
640{ 705{
641#ifdef _WIN32
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655}
656
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait ()
753{
754 fd_set rfd;
755
756 while (nreqs) 706 while (eio_nreqs ())
757 { 707 {
758 int size; 708 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 709
710 X_LOCK (reslock);
760 size = res_queue.size; 711 size = res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 712 X_UNLOCK (reslock);
762 713
763 if (size) 714 if (size)
764 return; 715 return;
765 716
766 maybe_start_thread (); 717 etp_maybe_start_thread ();
767 718
768 FD_ZERO (&rfd); 719 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 720 }
773} 721}
774 722
775static int poll_cb () 723static int
724poll_cb (void)
776{ 725{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 726 for (;;)
790 { 727 {
791 for (;;) 728 int res = eio_poll ();
729
730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758# define PROT_NONE 0
759# define PROT_WRITE 0
760# define MAP_PRIVATE 0
761# define MAP_SHARED 0
762# define MAP_FIXED 0
763#endif
764
765#define MMAP_MAGIC PERL_MAGIC_ext
766
767static int ecb_cold
768mmap_free (pTHX_ SV *sv, MAGIC *mg)
769{
770 int old_errno = errno;
771 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
772 errno = old_errno;
773
774 mg->mg_obj = 0; /* just in case */
775
776 SvREADONLY_off (sv);
777
778 if (SvPVX (sv) != mg->mg_ptr)
779 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
780
781 SvCUR_set (sv, 0);
782 SvPVX (sv) = 0;
783 SvOK_off (sv);
784
785 return 0;
786}
787
788static MGVTBL mmap_vtbl = {
789 0, 0, 0, 0, mmap_free
790};
791
792/*****************************************************************************/
793
794static SV *
795get_cb (SV *cb_sv)
796{
797 SvGETMAGIC (cb_sv);
798 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
799}
800
801static aio_req ecb_noinline
802dreq (SV *callback)
803{
804 SV *cb_cv;
805 aio_req req;
806 int req_pri = next_pri;
807 next_pri = EIO_PRI_DEFAULT;
808
809 cb_cv = get_cb (callback);
810
811 req = calloc (sizeof (*req), 1);
812 if (!req)
813 croak ("out of memory during eio_req allocation");
814
815 req->callback = SvREFCNT_inc (cb_cv);
816 req->pri = req_pri;
817
818 return req;
819}
820
821#define dREQ \
822 aio_req req = dreq (callback); \
823
824#define REQ_SEND \
825 PUTBACK; \
826 req_submit (req); \
827 SPAGAIN; \
828 \
829 if (GIMME_V != G_VOID) \
830 XPUSHs (req_sv (req, aio_req_stash));
831
832ecb_inline void
833req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
834{
835 if (expect_false (SvROK (path)))
836 {
837 SV *rv = SvRV (path);
838 SV *wdob;
839
840 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
792 { 841 {
793 maybe_start_thread (); 842 path = AvARRAY (rv)[1];
843 wdob = AvARRAY (rv)[0];
794 844
795 X_LOCK (reslock); 845 if (SvOK (wdob))
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 { 846 {
800 --npending; 847 *wd = SvAIO_WD (wdob);
801 848 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (PerlSock_recv (respipe [0], buf, 4, 0) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 } 849 }
823 else 850 else
824 { 851 *wd = EIO_INVALID_WD;
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0);
830 }
831
832 count++;
833 }
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 } 852 }
853 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
854 {
855 *wd = (aio_wd)(long)SvIVX (rv);
856 *wdsv = SvREFCNT_inc_NN (rv);
857 *ptr = ".";
858 return; /* path set to "." */
859 }
860 else
861 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
862 }
848 863
849 if (nreqs <= max_outstanding) 864 *pathsv = newSVsv (path);
865 *ptr = SvPVbyte_nolen (*pathsv);
866}
867
868static void ecb_noinline
869req_set_path1 (aio_req req, SV *path)
870{
871 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
872}
873
874static void ecb_noinline
875req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
876{
877 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
878
879 switch (SvTYPE (rv))
880 {
881 case SVt_PVIO:
882 case SVt_PVLV:
883 case SVt_PVGV:
884 req->type = type_fh;
885 req->sv1 = newSVsv (fh_or_path);
886 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850 break; 887 break;
851 888
852 poll_wait (); 889 default:
853 890 req->type = type_path;
854 ++maxreqs; 891 req_set_path1 (req, fh_or_path);
892 break;
855 } 893 }
856
857 unblock_sig ();
858 return count;
859} 894}
860 895
861/*****************************************************************************/ 896XS(boot_IO__AIO) ecb_cold;
862/* work around various missing functions */
863 897
864#if !HAVE_PREADWRITE
865# define pread aio_pread
866# define pwrite aio_pwrite
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{
877 ssize_t res;
878 off_t ooffset;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888}
889
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
891{
892 ssize_t res;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0;
998
999#if HAVE_SENDFILE
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002
1003# elif __freebsd
1004 /*
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011
1012 if (res < 0 && sbytes)
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041
1042 if (res < 0
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1044#if __solaris
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1046#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052
1053 res = 0;
1054
1055 while (count)
1056 {
1057 ssize_t cnt;
1058
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1060
1061 if (cnt <= 0)
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066
1067 cnt = write (ofd, aio_buf, cnt);
1068
1069 if (cnt <= 0)
1070 {
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074
1075 offset += cnt;
1076 res += cnt;
1077 count -= cnt;
1078 }
1079 }
1080
1081 return res;
1082}
1083
1084/* read a full directory */
1085static void scandir_ (aio_req req, worker *self)
1086{
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143}
1144
1145/*****************************************************************************/
1146
1147X_THREAD_PROC (aio_proc)
1148{
1149 {//D
1150 aio_req req;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 send (respipe_osf [1], (const void *)&respipe_osf, 1, 0);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 PerlSock_closesocket (respipe [0]);
1376 PerlSock_closesocket (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381}
1382
1383#define dREQ \
1384 aio_req req; \
1385 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \
1387 \
1388 if (SvOK (callback) && !SvROK (callback)) \
1389 croak ("callback must be undef or of reference type"); \
1390 \
1391 Newz (0, req, 1, aio_cb); \
1392 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \
1394 \
1395 req->callback = newSVsv (callback); \
1396 req->pri = req_pri
1397
1398#define REQ_SEND \
1399 req_send (req); \
1400 \
1401 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1403
1404MODULE = IO::AIO PACKAGE = IO::AIO 898MODULE = IO::AIO PACKAGE = IO::AIO
1405 899
1406PROTOTYPES: ENABLE 900PROTOTYPES: ENABLE
1407 901
1408BOOT: 902BOOT:
1409{ 903{
904 static const struct {
905 const char *name;
906 IV iv;
907 } *civ, const_iv[] = {
908# define const_niv(name, value) { # name, (IV) value },
909# define const_iv(name) { # name, (IV) name },
910# define const_eio(name) { # name, (IV) EIO_ ## name },
911
912 /* you have to re-run ./gendef0 after adding/Removing any constants here */
913
914 const_iv (ENOSYS)
915 const_iv (EXDEV)
916 const_iv (EBADR)
917
918 const_iv (O_RDONLY)
919 const_iv (O_WRONLY)
920 const_iv (O_RDWR)
921 const_iv (O_CREAT)
922 const_iv (O_TRUNC)
923 const_iv (O_EXCL)
924 const_iv (O_APPEND)
925
926 const_iv (O_ASYNC)
927 const_iv (O_DIRECT)
928 const_iv (O_NOATIME)
929
930 const_iv (O_CLOEXEC)
931 const_iv (O_NOCTTY)
932 const_iv (O_NOFOLLOW)
933 const_iv (O_NONBLOCK)
934 const_iv (O_EXEC)
935 const_iv (O_SEARCH)
936 const_iv (O_DIRECTORY)
937 const_iv (O_DSYNC)
938 const_iv (O_RSYNC)
939 const_iv (O_SYNC)
940 const_iv (O_TTY_INIT)
941
942 const_iv (S_IFIFO)
943 const_iv (S_IFCHR)
944 const_iv (S_IFBLK)
945 const_iv (S_IFLNK)
946 const_iv (S_IFREG)
947 const_iv (S_IFDIR)
948 const_iv (S_IFWHT)
949 const_iv (S_IFSOCK)
950 const_iv (S_IFMT)
951
952 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
953 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
954 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
955 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
956 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
957 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
958
959 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
960 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
961 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
962 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
963 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
964
965 const_iv (ST_RDONLY)
966 const_iv (ST_NOSUID)
967 const_iv (ST_NODEV)
968 const_iv (ST_NOEXEC)
969 const_iv (ST_SYNCHRONOUS)
970 const_iv (ST_MANDLOCK)
971 const_iv (ST_WRITE)
972 const_iv (ST_APPEND)
973 const_iv (ST_IMMUTABLE)
974 const_iv (ST_NOATIME)
975 const_iv (ST_NODIRATIME)
976 const_iv (ST_RELATIME)
977
978 const_iv (PROT_NONE)
979 const_iv (PROT_EXEC)
980 const_iv (PROT_READ)
981 const_iv (PROT_WRITE)
982
983 /*const_iv (MAP_FIXED)*/
984 const_iv (MAP_PRIVATE)
985 const_iv (MAP_SHARED)
986 const_iv (MAP_ANONYMOUS)
987
988 /* linuxish */
989 const_iv (MAP_HUGETLB)
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
994
995 const_iv (FIEMAP_FLAG_SYNC)
996 const_iv (FIEMAP_FLAG_XATTR)
997 const_iv (FIEMAP_FLAGS_COMPAT)
998 const_iv (FIEMAP_EXTENT_LAST)
999 const_iv (FIEMAP_EXTENT_UNKNOWN)
1000 const_iv (FIEMAP_EXTENT_DELALLOC)
1001 const_iv (FIEMAP_EXTENT_ENCODED)
1002 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1003 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1004 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1005 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1006 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1007 const_iv (FIEMAP_EXTENT_MERGED)
1008 const_iv (FIEMAP_EXTENT_SHARED)
1009
1010 const_iv (SPLICE_F_MOVE)
1011 const_iv (SPLICE_F_NONBLOCK)
1012 const_iv (SPLICE_F_MORE)
1013 const_iv (SPLICE_F_GIFT)
1014
1015 const_iv (SEEK_DATA)
1016 const_iv (SEEK_HOLE)
1017
1018 /* libeio constants */
1019 const_eio (SEEK_SET)
1020 const_eio (SEEK_CUR)
1021 const_eio (SEEK_END)
1022
1023 const_eio (MCL_FUTURE)
1024 const_eio (MCL_CURRENT)
1025
1026 const_eio (MS_ASYNC)
1027 const_eio (MS_INVALIDATE)
1028 const_eio (MS_SYNC)
1029
1030 const_eio (MT_MODIFY)
1031
1032 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1033 const_eio (SYNC_FILE_RANGE_WRITE)
1034 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1035
1036 const_eio (FALLOC_FL_KEEP_SIZE)
1037 const_eio (FALLOC_FL_PUNCH_HOLE)
1038
1039 const_eio (READDIR_DENTS)
1040 const_eio (READDIR_DIRS_FIRST)
1041 const_eio (READDIR_STAT_ORDER)
1042 const_eio (READDIR_FOUND_UNKNOWN)
1043
1044 const_eio (DT_UNKNOWN)
1045 const_eio (DT_FIFO)
1046 const_eio (DT_CHR)
1047 const_eio (DT_DIR)
1048 const_eio (DT_BLK)
1049 const_eio (DT_REG)
1050 const_eio (DT_LNK)
1051 const_eio (DT_SOCK)
1052 const_eio (DT_WHT)
1053 };
1054
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 1055 aio_stash = gv_stashpv ("IO::AIO" , 1);
1056 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1057 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1058 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1411 1059
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1060 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1061 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424 1062
1425 X_COND_CHECK (reqwait); 1063 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430 1064
1431 create_pipe (respipe); 1065 reinit ();
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434} 1066}
1435 1067
1436void 1068void
1069reinit ()
1070 PROTOTYPE:
1071
1072void
1437max_poll_reqs (int nreqs) 1073max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 1074 PROTOTYPE: $
1439 CODE: 1075 CODE:
1440 max_poll_reqs = nreqs; 1076 eio_set_max_poll_reqs (nreqs);
1441 1077
1442void 1078void
1443max_poll_time (double nseconds) 1079max_poll_time (double nseconds)
1444 PROTOTYPE: $ 1080 PROTOTYPE: $
1445 CODE: 1081 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 1082 eio_set_max_poll_time (nseconds);
1447 1083
1448void 1084void
1449min_parallel (int nthreads) 1085min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 1086 PROTOTYPE: $
1459 CODE: 1087 CODE:
1460 set_max_idle (nthreads); 1088 eio_set_min_parallel (nthreads);
1461 1089
1462int 1090void
1463max_outstanding (int maxreqs) 1091max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 1092 PROTOTYPE: $
1465 CODE: 1093 CODE:
1466 RETVAL = max_outstanding; 1094 eio_set_max_parallel (nthreads);
1095
1096void
1097max_idle (unsigned int nthreads)
1098 PROTOTYPE: $
1099 CODE:
1100 eio_set_max_idle (nthreads);
1101
1102void
1103idle_timeout (unsigned int seconds)
1104 PROTOTYPE: $
1105 CODE:
1106 eio_set_idle_timeout (seconds);
1107
1108void
1109max_outstanding (unsigned int maxreqs)
1110 PROTOTYPE: $
1111 CODE:
1467 max_outstanding = maxreqs; 1112 max_outstanding = maxreqs;
1468 OUTPUT: 1113
1469 RETVAL 1114void
1115aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1116 PPCODE:
1117{
1118 dREQ;
1119
1120 req->type = EIO_WD_OPEN;
1121 req_set_path1 (req, pathname);
1122
1123 REQ_SEND;
1124}
1470 1125
1471void 1126void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1127aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 1128 PPCODE:
1475{ 1129{
1476 dREQ; 1130 dREQ;
1477 1131
1478 req->type = REQ_OPEN; 1132 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 1133 req_set_path1 (req, pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 1134 req->int1 = flags;
1482 req->mode = mode; 1135 req->int2 = mode;
1483 1136
1484 REQ_SEND; 1137 REQ_SEND;
1485} 1138}
1486 1139
1487void 1140void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 1141aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 1142 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 1143 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 1144 aio_fdatasync = EIO_FDATASYNC
1145 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 1146 PPCODE:
1495{ 1147{
1148 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1149 dREQ;
1497 1150
1498 req->type = ix; 1151 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1152 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1153 req->int1 = fd;
1501 1154
1502 REQ_SEND (req); 1155 REQ_SEND;
1156}
1157
1158void
1159aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1160 PPCODE:
1161{
1162 int fd = s_fileno_croak (fh, 0);
1163 dREQ;
1164
1165 req->type = EIO_SYNC_FILE_RANGE;
1166 req->sv1 = newSVsv (fh);
1167 req->int1 = fd;
1168 req->offs = offset;
1169 req->size = nbytes;
1170 req->int2 = flags;
1171
1172 REQ_SEND;
1173}
1174
1175void
1176aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1177 PPCODE:
1178{
1179 int fd = s_fileno_croak (fh, 0);
1180 dREQ;
1181
1182 req->type = EIO_FALLOCATE;
1183 req->sv1 = newSVsv (fh);
1184 req->int1 = fd;
1185 req->int2 = mode;
1186 req->offs = offset;
1187 req->size = len;
1188
1189 REQ_SEND;
1190}
1191
1192void
1193aio_close (SV *fh, SV *callback=&PL_sv_undef)
1194 PPCODE:
1195{
1196 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1197 int fd = s_fileno_croak (fh, 0);
1198 dREQ;
1199
1200 if (expect_false (close_fd < 0))
1201 {
1202 int pipefd [2];
1203
1204 if (
1205#ifdef _WIN32
1206 _pipe (pipefd, 1, _O_BINARY) < 0
1207#else
1208 pipe (pipefd) < 0
1209 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1210#endif
1211 || close (pipefd [1]) < 0
1212 )
1213 abort (); /*D*/
1214
1215 close_fd = pipefd [0];
1216 }
1217
1218 req->type = EIO_DUP2;
1219 req->int1 = close_fd;
1220 req->sv2 = newSVsv (fh);
1221 req->int2 = fd;
1222
1223 REQ_SEND;
1224}
1225
1226void
1227aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1228 PPCODE:
1229{
1230 int fd = s_fileno_croak (fh, 0);
1231 dREQ;
1232
1233 req->type = EIO_SEEK;
1234 req->sv1 = newSVsv (fh);
1235 req->int1 = fd;
1236 req->offs = SvVAL64 (offset);
1237 req->int2 = whence;
1238
1239 REQ_SEND;
1503} 1240}
1504 1241
1505void 1242void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1243aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1507 ALIAS: 1244 ALIAS:
1508 aio_read = REQ_READ 1245 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1246 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1247 PPCODE:
1512{ 1248{
1513 STRLEN svlen; 1249 STRLEN svlen;
1250 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1251 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1252 UV len = SvUV (length);
1516 1253
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1254 if (dataoffset < 0)
1521 dataoffset += svlen; 1255 dataoffset += svlen;
1522 1256
1523 if (dataoffset < 0 || dataoffset > svlen) 1257 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1258 croak ("dataoffset outside of data scalar");
1525 1259
1526 if (ix == REQ_WRITE) 1260 if (ix == EIO_WRITE)
1527 { 1261 {
1528 /* write: check length and adjust. */ 1262 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1263 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1264 len = svlen - dataoffset;
1531 } 1265 }
1532 else 1266 else
1533 { 1267 {
1534 /* read: grow scalar as necessary */ 1268 /* read: check type and grow scalar as necessary */
1269 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1535 svptr = SvGROW (data, len + dataoffset + 1); 1270 svptr = sv_grow (data, len + dataoffset + 1);
1271 else if (SvCUR (data) < len + dataoffset)
1272 croak ("length + dataoffset outside of scalar, and cannot grow");
1536 } 1273 }
1537
1538 if (len < 0)
1539 croak ("length must not be negative");
1540 1274
1541 { 1275 {
1542 dREQ; 1276 dREQ;
1543 1277
1544 req->type = ix; 1278 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1279 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1280 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1281 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1282 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1283 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1284 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1285 req->stroffset = dataoffset;
1553 1286
1554 if (!SvREADONLY (data)) 1287 if (!SvREADONLY (data))
1555 { 1288 {
1556 SvREADONLY_on (data); 1289 SvREADONLY_on (data);
… …
1560 REQ_SEND; 1293 REQ_SEND;
1561 } 1294 }
1562} 1295}
1563 1296
1564void 1297void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1298aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1566 PROTOTYPE: $$;$ 1299 ALIAS:
1300 aio_readlink = EIO_READLINK
1301 aio_realpath = EIO_REALPATH
1567 PPCODE: 1302 PPCODE:
1568{ 1303{
1569 SV *data;
1570 dREQ; 1304 dREQ;
1571 1305
1572 data = newSV (NAME_MAX);
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK; 1306 req->type = ix;
1576 req->sv1 = newSVsv (path); 1307 req_set_path1 (req, pathname);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580 1308
1581 REQ_SEND; 1309 REQ_SEND;
1582} 1310}
1583 1311
1584void 1312void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1313aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE: 1314 PPCODE:
1588{ 1315{
1316 int ifd = s_fileno_croak (in_fh , 0);
1317 int ofd = s_fileno_croak (out_fh, 1);
1589 dREQ; 1318 dREQ;
1590 1319
1591 req->type = REQ_SENDFILE; 1320 req->type = EIO_SENDFILE;
1592 req->sv1 = newSVsv (out_fh); 1321 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1322 req->int1 = ofd;
1594 req->sv2 = newSVsv (in_fh); 1323 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1324 req->int2 = ifd;
1596 req->offs = SvVAL64 (in_offset); 1325 req->offs = in_offset;
1597 req->size = length; 1326 req->size = length;
1598 1327
1599 REQ_SEND; 1328 REQ_SEND;
1600} 1329}
1601 1330
1602void 1331void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1332aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE: 1333 PPCODE:
1606{ 1334{
1335 int fd = s_fileno_croak (fh, 0);
1607 dREQ; 1336 dREQ;
1608 1337
1609 req->type = REQ_READAHEAD; 1338 req->type = EIO_READAHEAD;
1610 req->sv1 = newSVsv (fh); 1339 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1340 req->int1 = fd;
1612 req->offs = SvVAL64 (offset); 1341 req->offs = offset;
1613 req->size = length; 1342 req->size = length;
1614 1343
1615 REQ_SEND; 1344 REQ_SEND;
1616} 1345}
1617 1346
1618void 1347void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1348aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS: 1349 ALIAS:
1621 aio_stat = REQ_STAT 1350 aio_stat = EIO_STAT
1622 aio_lstat = REQ_LSTAT 1351 aio_lstat = EIO_LSTAT
1352 aio_statvfs = EIO_STATVFS
1623 PPCODE: 1353 PPCODE:
1624{ 1354{
1625 dREQ; 1355 dREQ;
1626 1356
1627 req->ptr2 = malloc (sizeof (Stat_t)); 1357 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1628 if (!req->ptr2)
1629 {
1630 req_destroy (req);
1631 croak ("out of memory during aio_stat statdata allocation");
1632 }
1633
1634 req->flags |= FLAG_PTR2_FREE;
1635 req->sv1 = newSVsv (fh_or_path);
1636
1637 if (SvPOK (fh_or_path))
1638 {
1639 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 }
1642 else
1643 {
1644 req->type = REQ_FSTAT;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1646 }
1647 1358
1648 REQ_SEND; 1359 REQ_SEND;
1649} 1360}
1361
1362UV
1363major (UV dev)
1364 ALIAS:
1365 minor = 1
1366 CODE:
1367 RETVAL = ix ? major (dev) : minor (dev);
1368 OUTPUT:
1369 RETVAL
1370
1371UV
1372makedev (UV maj, UV min)
1373 CODE:
1374 RETVAL = makedev (maj, min);
1375 OUTPUT:
1376 RETVAL
1650 1377
1651void 1378void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1379aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1653 PPCODE: 1380 PPCODE:
1654{ 1381{
1655 dREQ; 1382 dREQ;
1656 1383
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1384 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1385 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1386 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1660
1661 if (SvPOK (fh_or_path))
1662 {
1663 req->type = REQ_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 }
1666 else
1667 {
1668 req->type = REQ_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 }
1671 1387
1672 REQ_SEND; 1388 REQ_SEND;
1673} 1389}
1674 1390
1675void 1391void
1676aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1392aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1677 PPCODE: 1393 PPCODE:
1678{ 1394{
1679 dREQ; 1395 dREQ;
1680 1396
1681 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1397 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1398 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1684 if (SvPOK (fh_or_path))
1685 {
1686 req->type = REQ_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 }
1689 else
1690 {
1691 req->type = REQ_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 }
1694 1399
1695 REQ_SEND; 1400 REQ_SEND;
1696} 1401}
1697 1402
1698void 1403void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1404aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1700 PPCODE: 1405 PPCODE:
1701{ 1406{
1702 dREQ; 1407 dREQ;
1703 1408
1704 req->mode = mode; 1409 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1410 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1706
1707 if (SvPOK (fh_or_path))
1708 {
1709 req->type = REQ_CHMOD;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 }
1712 else
1713 {
1714 req->type = REQ_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 }
1717 1411
1718 REQ_SEND; 1412 REQ_SEND;
1719} 1413}
1720 1414
1721void 1415void
… …
1724{ 1418{
1725 dREQ; 1419 dREQ;
1726 1420
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1421 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1422 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1423 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1730 1424
1731 if (SvPOK (fh_or_path)) 1425 REQ_SEND;
1732 { 1426}
1733 req->type = REQ_CHOWN; 1427
1734 req->ptr1 = SvPVbyte_nolen (req->sv1); 1428void
1735 } 1429aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1736 else 1430 PPCODE:
1737 { 1431{
1738 req->type = REQ_FCHOWN; 1432 dREQ;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1433
1740 } 1434 req->type = EIO_READDIR;
1435 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1436
1437 if (flags & EIO_READDIR_DENTS)
1438 req->int1 |= EIO_READDIR_CUSTOM2;
1439
1440 req_set_path1 (req, pathname);
1441
1442 REQ_SEND;
1443}
1444
1445void
1446aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1447 PPCODE:
1448{
1449 dREQ;
1450
1451 req->type = EIO_MKDIR;
1452 req->int2 = mode;
1453 req_set_path1 (req, pathname);
1741 1454
1742 REQ_SEND; 1455 REQ_SEND;
1743} 1456}
1744 1457
1745void 1458void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1459aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1747 ALIAS: 1460 ALIAS:
1748 aio_unlink = REQ_UNLINK 1461 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1462 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1463 aio_readdir = EIO_READDIR
1751 PPCODE: 1464 PPCODE:
1752{ 1465{
1753 dREQ; 1466 dREQ;
1754 1467
1755 req->type = ix; 1468 req->type = ix;
1756 req->sv1 = newSVsv (pathname); 1469 req_set_path1 (req, pathname);
1757 req->ptr1 = SvPVbyte_nolen (req->sv1);
1758
1759 REQ_SEND;
1760}
1761
1762void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1764 PPCODE:
1765{
1766 dREQ;
1767
1768 req->type = REQ_MKDIR;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772 1470
1773 REQ_SEND; 1471 REQ_SEND;
1774} 1472}
1775 1473
1776void 1474void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1475aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS: 1476 ALIAS:
1779 aio_link = REQ_LINK 1477 aio_link = EIO_LINK
1780 aio_symlink = REQ_SYMLINK 1478 aio_symlink = EIO_SYMLINK
1781 aio_rename = REQ_RENAME 1479 aio_rename = EIO_RENAME
1782 PPCODE: 1480 PPCODE:
1783{ 1481{
1482 eio_wd wd2 = 0;
1784 dREQ; 1483 dREQ;
1785 1484
1786 req->type = ix; 1485 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1486 req_set_path1 (req, oldpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1487 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1789 req->sv1 = newSVsv (newpath); 1488 req->int3 = (long)wd2;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1489
1792 REQ_SEND; 1490 REQ_SEND;
1793} 1491}
1794 1492
1795void 1493void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1494aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1797 PPCODE: 1495 PPCODE:
1798{ 1496{
1799 dREQ; 1497 dREQ;
1800 1498
1801 req->type = REQ_MKNOD; 1499 req->type = EIO_MKNOD;
1802 req->sv1 = newSVsv (pathname);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1);
1804 req->mode = (mode_t)mode; 1500 req->int2 = (mode_t)mode;
1805 req->offs = dev; 1501 req->offs = dev;
1502 req_set_path1 (req, pathname);
1806 1503
1807 REQ_SEND; 1504 REQ_SEND;
1808} 1505}
1809 1506
1810void 1507void
1508aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1509 ALIAS:
1510 aio_mtouch = EIO_MTOUCH
1511 aio_msync = EIO_MSYNC
1512 PPCODE:
1513{
1514 STRLEN svlen;
1515 char *svptr = SvPVbyte (data, svlen);
1516 UV len = SvUV (length);
1517
1518 if (offset < 0)
1519 offset += svlen;
1520
1521 if (offset < 0 || offset > svlen)
1522 croak ("offset outside of scalar");
1523
1524 if (!SvOK (length) || len + offset > svlen)
1525 len = svlen - offset;
1526
1527 {
1528 dREQ;
1529
1530 req->type = ix;
1531 req->sv2 = SvREFCNT_inc (data);
1532 req->ptr2 = (char *)svptr + offset;
1533 req->size = len;
1534 req->int1 = flags;
1535
1536 REQ_SEND;
1537 }
1538}
1539
1540void
1541aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1542 PPCODE:
1543{
1544 STRLEN svlen;
1545 char *svptr = SvPVbyte (data, svlen);
1546 UV len = SvUV (length);
1547
1548 if (offset < 0)
1549 offset += svlen;
1550
1551 if (offset < 0 || offset > svlen)
1552 croak ("offset outside of scalar");
1553
1554 if (!SvOK (length) || len + offset > svlen)
1555 len = svlen - offset;
1556
1557 {
1558 dREQ;
1559
1560 req->type = EIO_MLOCK;
1561 req->sv2 = SvREFCNT_inc (data);
1562 req->ptr2 = (char *)svptr + offset;
1563 req->size = len;
1564
1565 REQ_SEND;
1566 }
1567}
1568
1569void
1570aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1571 PPCODE:
1572{
1573 dREQ;
1574
1575 req->type = EIO_MLOCKALL;
1576 req->int1 = flags;
1577
1578 REQ_SEND;
1579}
1580
1581void
1582aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1583 PPCODE:
1584{
1585 int fd = s_fileno_croak (fh, 0);
1586 dREQ;
1587
1588 req->type = EIO_CUSTOM;
1589 req->sv1 = newSVsv (fh);
1590 req->int1 = fd;
1591
1592 req->feed = fiemap;
1593#if HAVE_FIEMAP
1594 /* keep our fingers crossed that the next two types are 64 bit */
1595 req->offs = start;
1596 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1597 req->int2 = flags;
1598 req->int3 = SvOK (count) ? SvIV (count) : -1;
1599#endif
1600
1601 REQ_SEND;
1602}
1603
1604void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1605aio_busy (double delay, SV *callback=&PL_sv_undef)
1812 PPCODE: 1606 PPCODE:
1813{ 1607{
1814 dREQ; 1608 dREQ;
1815 1609
1816 req->type = REQ_BUSY; 1610 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 1611 req->nv1 = delay < 0. ? 0. : delay;
1818 1612
1819 REQ_SEND; 1613 REQ_SEND;
1820} 1614}
1821 1615
1822void 1616void
1823aio_group (SV *callback=&PL_sv_undef) 1617aio_group (SV *callback=&PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 1618 PPCODE:
1826{ 1619{
1827 dREQ; 1620 dREQ;
1828 1621
1829 req->type = REQ_GROUP; 1622 req->type = EIO_GROUP;
1830 1623
1624 PUTBACK;
1831 req_send (req); 1625 req_submit (req);
1626 SPAGAIN;
1627
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1628 XPUSHs (req_sv (req, aio_grp_stash));
1833} 1629}
1834 1630
1835void 1631void
1836aio_nop (SV *callback=&PL_sv_undef) 1632aio_nop (SV *callback=&PL_sv_undef)
1633 ALIAS:
1634 aio_nop = EIO_NOP
1635 aio_sync = EIO_SYNC
1837 PPCODE: 1636 PPCODE:
1838{ 1637{
1839 dREQ; 1638 dREQ;
1840 1639
1841 req->type = REQ_NOP; 1640 req->type = ix;
1842 1641
1843 REQ_SEND; 1642 REQ_SEND;
1844} 1643}
1845 1644
1846int 1645int
1847aioreq_pri (int pri = 0) 1646aioreq_pri (int pri = 0)
1848 PROTOTYPE: ;$
1849 CODE: 1647 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1648 RETVAL = next_pri;
1851 if (items > 0) 1649 if (items > 0)
1852 { 1650 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1651 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1652 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1653 next_pri = pri;
1856 } 1654 }
1857 OUTPUT: 1655 OUTPUT:
1858 RETVAL 1656 RETVAL
1859 1657
1860void 1658void
1861aioreq_nice (int nice = 0) 1659aioreq_nice (int nice = 0)
1862 CODE: 1660 CODE:
1863 nice = next_pri - nice; 1661 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1662 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1663 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1664 next_pri = nice;
1867 1665
1868void 1666void
1869flush () 1667flush ()
1870 PROTOTYPE:
1871 CODE: 1668 CODE:
1872 while (nreqs) 1669 while (eio_nreqs ())
1873 { 1670 {
1874 poll_wait (); 1671 poll_wait ();
1875 poll_cb (); 1672 poll_cb ();
1876 } 1673 }
1877 1674
1878int 1675int
1879poll() 1676poll ()
1880 PROTOTYPE:
1881 CODE: 1677 CODE:
1882 poll_wait (); 1678 poll_wait ();
1883 RETVAL = poll_cb (); 1679 RETVAL = poll_cb ();
1884 OUTPUT: 1680 OUTPUT:
1885 RETVAL 1681 RETVAL
1886 1682
1887int 1683int
1888poll_fileno() 1684poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1685 CODE:
1891 RETVAL = respipe [0]; 1686 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1687 OUTPUT:
1893 RETVAL 1688 RETVAL
1894 1689
1895int 1690int
1896poll_cb(...) 1691poll_cb (...)
1897 PROTOTYPE: 1692 PROTOTYPE:
1898 CODE: 1693 CODE:
1899 RETVAL = poll_cb (); 1694 RETVAL = poll_cb ();
1900 OUTPUT: 1695 OUTPUT:
1901 RETVAL 1696 RETVAL
1902 1697
1903void 1698void
1904poll_wait() 1699poll_wait ()
1905 PROTOTYPE:
1906 CODE: 1700 CODE:
1907 poll_wait (); 1701 poll_wait ();
1908 1702
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 1703int
1947nreqs() 1704nreqs ()
1948 PROTOTYPE:
1949 CODE: 1705 CODE:
1950 RETVAL = nreqs; 1706 RETVAL = eio_nreqs ();
1951 OUTPUT: 1707 OUTPUT:
1952 RETVAL 1708 RETVAL
1953 1709
1954int 1710int
1955nready() 1711nready ()
1956 PROTOTYPE:
1957 CODE: 1712 CODE:
1958 RETVAL = get_nready (); 1713 RETVAL = eio_nready ();
1959 OUTPUT: 1714 OUTPUT:
1960 RETVAL 1715 RETVAL
1961 1716
1962int 1717int
1963npending() 1718npending ()
1964 PROTOTYPE:
1965 CODE: 1719 CODE:
1966 RETVAL = get_npending (); 1720 RETVAL = eio_npending ();
1967 OUTPUT: 1721 OUTPUT:
1968 RETVAL 1722 RETVAL
1969 1723
1970int 1724int
1971nthreads() 1725nthreads ()
1972 PROTOTYPE:
1973 CODE: 1726 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1727 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 1728 OUTPUT:
1978 RETVAL 1729 RETVAL
1979 1730
1731int
1732fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1733 CODE:
1734 RETVAL = posix_fadvise (fh, offset, length, advice);
1735 OUTPUT:
1736 RETVAL
1737
1738IV
1739sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1740 CODE:
1741 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1742 OUTPUT:
1743 RETVAL
1744
1745void
1746mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1747 PPCODE:
1748 sv_unmagic (scalar, MMAP_MAGIC);
1749{
1750 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1751 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1752 if (addr == (void *)-1)
1753 XSRETURN_NO;
1754
1755 sv_force_normal (scalar);
1756
1757 /* we store the length in mg_obj, as namlen is I32 :/ */
1758 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1759 ->mg_obj = (SV *)length;
1760
1761 SvUPGRADE (scalar, SVt_PV); /* nop... */
1762
1763 if (!(prot & PROT_WRITE))
1764 SvREADONLY_on (scalar);
1765
1766 if (SvLEN (scalar))
1767 Safefree (SvPVX (scalar));
1768
1769 SvPVX (scalar) = (char *)addr;
1770 SvCUR_set (scalar, length);
1771 SvLEN_set (scalar, 0);
1772 SvPOK_only (scalar);
1773
1774 XSRETURN_YES;
1775}
1776
1777void
1778munmap (SV *scalar)
1779 CODE:
1780 sv_unmagic (scalar, MMAP_MAGIC);
1781
1782int
1783madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1784 ALIAS:
1785 mprotect = 1
1786 CODE:
1787{
1788 STRLEN svlen;
1789 void *addr = SvPVbyte (scalar, svlen);
1790 STRLEN len = SvUV (length);
1791
1792 if (offset < 0)
1793 offset += svlen;
1794
1795 if (offset < 0 || offset > svlen)
1796 croak ("offset outside of scalar");
1797
1798 if (!SvOK (length) || len + offset > svlen)
1799 len = svlen - offset;
1800
1801 addr = (void *)(((intptr_t)addr) + offset);
1802 eio_page_align (&addr, &len);
1803
1804 switch (ix)
1805 {
1806 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1807 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1808 }
1809}
1810 OUTPUT:
1811 RETVAL
1812
1813int
1814munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1815 CODE:
1816{
1817 STRLEN svlen;
1818 void *addr = SvPVbyte (scalar, svlen);
1819 size_t len = SvUV (length);
1820
1821 if (offset < 0)
1822 offset += svlen;
1823
1824 if (offset < 0 || offset > svlen)
1825 croak ("offset outside of scalar");
1826
1827 if (!SvOK (length) || len + offset > svlen)
1828 len = svlen - offset;
1829
1830 addr = (void *)(((intptr_t)addr) + offset);
1831 eio_page_align (&addr, &len);
1832#if _POSIX_MEMLOCK_RANGE
1833 RETVAL = munlock (addr, len);
1834#else
1835 RETVAL = EIO_ENOSYS ();
1836#endif
1837}
1838 OUTPUT:
1839 RETVAL
1840
1841int
1842munlockall ()
1843 CODE:
1844#if _POSIX_MEMLOCK
1845 munlockall ();
1846#else
1847 RETVAL = EIO_ENOSYS ();
1848#endif
1849 OUTPUT:
1850 RETVAL
1851
1852int
1853splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1854 CODE:
1855{
1856#if HAVE_LINUX_SPLICE
1857 loff_t off_in_, off_out_;
1858 RETVAL = splice (
1859 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1860 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1861 length, flags
1862 );
1863#else
1864 RETVAL = EIO_ENOSYS ();
1865#endif
1866}
1867 OUTPUT:
1868 RETVAL
1869
1870int
1871tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1872 CODE:
1873#if HAVE_LINUX_SPLICE
1874 RETVAL = tee (rfh, wfh, length, flags);
1875#else
1876 RETVAL = EIO_ENOSYS ();
1877#endif
1878 OUTPUT:
1879 RETVAL
1880
1881int
1882pipesize (aio_rfd rfh, int new_size = -1)
1883 PROTOTYPE: $;$
1884 CODE:
1885#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1886 if (new_size >= 0)
1887 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1888 else
1889 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1890#else
1891 errno = ENOSYS;
1892 RETVAL = -1;
1893#endif
1894 OUTPUT:
1895 RETVAL
1896
1897void _on_next_submit (SV *cb)
1898 CODE:
1899 SvREFCNT_dec (on_next_submit);
1900 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1901
1980PROTOTYPES: DISABLE 1902PROTOTYPES: DISABLE
1903
1904MODULE = IO::AIO PACKAGE = IO::AIO::WD
1905
1906BOOT:
1907{
1908 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1909 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1910}
1911
1912void
1913DESTROY (SV *self)
1914 CODE:
1915{
1916 aio_wd wd = SvAIO_WD (self);
1917#if HAVE_AT
1918 {
1919 SV *callback = &PL_sv_undef;
1920 dREQ; /* clobbers next_pri :/ */
1921 next_pri = req->pri; /* restore next_pri */
1922 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1923 req->type = EIO_WD_CLOSE;
1924 req->wd = wd;
1925 REQ_SEND;
1926 }
1927#else
1928 eio_wd_close_sync (wd);
1929#endif
1930}
1981 1931
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1932MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 1933
1984void 1934void
1985cancel (aio_req_ornot req) 1935cancel (aio_req_ornot req)
1986 CODE: 1936 CODE:
1987 req_cancel (req); 1937 eio_cancel (req);
1988 1938
1989void 1939void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1940cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1991 CODE: 1941 PPCODE:
1942{
1943 if (GIMME_V != G_VOID)
1944 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1945
1946 if (items > 1)
1947 {
1948 SV *cb_cv =get_cb (callback);
1949
1992 SvREFCNT_dec (req->callback); 1950 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 1951 req->callback = SvREFCNT_inc (cb_cv);
1952 }
1953}
1994 1954
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1955MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 1956
1997void 1957void
1998add (aio_req grp, ...) 1958add (aio_req grp, ...)
1999 PPCODE: 1959 PPCODE:
2000{ 1960{
2001 int i; 1961 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 1962
2007 if (grp->int1 == 2) 1963 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1964 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 1965
2010 for (i = 1; i < items; ++i ) 1966 for (i = 1; i < items; ++i )
2011 { 1967 {
1968 aio_req req;
1969
2012 if (GIMME_V != G_VOID) 1970 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1971 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 1972
2015 req = SvAIO_REQ (ST (i)); 1973 req = SvAIO_REQ (ST (i));
2016 1974
2017 if (req) 1975 if (req)
2018 { 1976 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 1977 }
2031} 1978}
2032 1979
2033void 1980void
2034cancel_subs (aio_req_ornot req) 1981cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 1990 AV *av;
2044 1991
2045 grp->errorno = errno; 1992 grp->errorno = errno;
2046 1993
2047 av = newAV (); 1994 av = newAV ();
1995 av_extend (av, items - 1);
2048 1996
2049 for (i = 1; i < items; ++i ) 1997 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 1998 av_push (av, newSVsv (ST (i)));
2051 1999
2052 SvREFCNT_dec (grp->sv1); 2000 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 2007 grp->errorno = errorno;
2060 2008
2061void 2009void
2062limit (aio_req grp, int limit) 2010limit (aio_req grp, int limit)
2063 CODE: 2011 CODE:
2064 grp->int2 = limit; 2012 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 2013
2067void 2014void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 2015feed (aio_req grp, SV *callback=&PL_sv_undef)
2069 CODE: 2016 CODE:
2070{ 2017{
2071 SvREFCNT_dec (grp->sv2); 2018 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 2019 grp->sv2 = newSVsv (callback);
2020 grp->feed = aio_grp_feed;
2073 2021
2074 if (grp->int2 <= 0) 2022 if (grp->int2 <= 0)
2075 grp->int2 = 2; 2023 grp->int2 = 2;
2076 2024
2077 aio_grp_feed (grp); 2025 eio_grp_limit (grp, grp->int2);
2078} 2026}
2079 2027

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