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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.108 by root, Thu Oct 4 12:50:35 2007 UTC vs.
Revision 1.221 by root, Wed Aug 22 22:28:03 2012 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#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
31#endif
32
33/* perl namespace pollution */
34#undef VERSION
35
36/* perl stupidly overrides readdir and maybe others */
37/* with thread-unsafe versions, imagine that :( */
38#undef readdir
39#undef opendir
40#undef closedir
41
18#ifdef _WIN32 42#ifdef _WIN32
19 43
20# define SIGIO 0 44 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 45
22#undef malloc 46 #undef malloc
23#undef free 47 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 48 #undef open
27# undef read 49 #undef read
28# undef write 50 #undef write
29# undef send 51 #undef send
30# undef recv 52 #undef recv
31# undef stat 53 #undef stat
54 #undef lstat
32# undef fstat 55 #undef fstat
33# define lstat stat
34# undef truncate 56 #undef truncate
35# undef ftruncate 57 #undef ftruncate
36# undef open 58 #undef open
59 #undef link
37# undef close 60 #undef close
38# undef unlink 61 #undef unlink
62 #undef mkdir
39# undef rmdir 63 #undef rmdir
40# undef rename 64 #undef rename
41# undef lseek 65 #undef lseek
66 #undef opendir
67 #undef readdir
68 #undef closedir
69 #undef chmod
70 #undef fchmod
71 #undef dup
72 #undef dup2
73 #undef abort
74 #undef pipe
42 75
43# define chown(a,b,c) (errno = ENOSYS, -1) 76 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 77 #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 78
57#else 79#else
58 80
59# include "autoconf/config.h"
60# include <sys/time.h> 81 #include <sys/time.h>
61# include <sys/select.h> 82 #include <sys/select.h>
62# include <unistd.h> 83 #include <unistd.h>
63# include <utime.h> 84 #include <utime.h>
64# include <signal.h> 85 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 86
67#endif 87 #define EIO_STRUCT_STAT Stat_t
68 88
69#if HAVE_SENDFILE 89#endif
70# if __linux 90
71# include <sys/sendfile.h> 91/*****************************************************************************/
72# elif __freebsd 92
73# include <sys/socket.h> 93#if __GNUC__ >= 3
74# include <sys/uio.h> 94# define expect(expr,value) __builtin_expect ((expr),(value))
75# elif __hpux 95#else
76# include <sys/socket.h> 96# define expect(expr,value) (expr)
77# elif __solaris /* not yet */ 97#endif
78# include <sys/sendfile.h> 98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
103
104typedef SV SV8; /* byte-sv, used for argument-checking */
105typedef int aio_rfd; /* read file desriptor */
106typedef int aio_wfd; /* write file descriptor */
107
108static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109
110#define EIO_REQ_MEMBERS \
111 SV *callback; \
112 SV *sv1, *sv2; \
113 SV *sv3, *sv4; \
114 STRLEN stroffset; \
115 SV *self;
116
117#define EIO_NO_WRAPPERS 1
118
119#include "libeio/config.h"
120#include "libeio/eio.h"
121
122static int req_invoke (eio_req *req);
123#define EIO_FINISH(req) req_invoke (req)
124static void req_destroy (eio_req *grp);
125#define EIO_DESTROY(req) req_destroy (req)
126
127#include "libeio/eio.c"
128
129#if !HAVE_POSIX_FADVISE
130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
131#endif
132
133#if !HAVE_POSIX_MADVISE
134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#ifndef MAP_ANONYMOUS
138# ifdef MAP_ANON
139# define MAP_ANONYMOUS MAP_ANON
79# else 140# else
80# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 142# endif
82#endif 143#endif
83 144
84/* number of seconds after which idle threads exit */ 145/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 146#include "def0.h"
86 147
87/* used for struct dirent, AIX doesn't provide it */ 148#ifndef makedev
88#ifndef NAME_MAX 149# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 150#endif
91 151#ifndef major
92/* buffer size for various temporary buffers */ 152# 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 153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
101 157
102static HV *stash; 158#ifndef PAGESIZE
159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
103 161
104#define dBUF \ 162/*****************************************************************************/
105 char *aio_buf; \
106 X_LOCK (wrklock); \
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
108 X_UNLOCK (wrklock); \
109 if (!aio_buf) \
110 return -1;
111 163
112typedef SV SV8; /* byte-sv, used for argument-checking */ 164static void
113 165fiemap (eio_req *req)
114enum {
115 REQ_QUIT,
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130};
131
132#define AIO_REQ_KLASS "IO::AIO::REQ"
133#define AIO_GRP_KLASS "IO::AIO::GRP"
134
135typedef struct aio_cb
136{ 166{
137 struct aio_cb *volatile next; 167 req->result = -1;
138 168
139 SV *callback; 169#if HAVE_FIEMAP
140 SV *sv1, *sv2; 170 /* assume some c99 */
141 void *ptr1, *ptr2; 171 struct fiemap *fiemap = 0;
142 off_t offs; 172 size_t end_offset;
143 size_t size; 173 int count = req->int3;
144 ssize_t result;
145 double nv1, nv2;
146 174
147 STRLEN stroffset; 175 req->flags |= EIO_FLAG_PTR1_FREE;
148 int type;
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 176
153 unsigned char flags; 177 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
154 unsigned char pri; 178 /* increase in 3.5kb steps */
179 if (count < 0)
180 count = 8;
155 181
156 SV *self; /* the perl counterpart of this request, if any */ 182 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 183 errno = ENOMEM;
158} aio_cb; 184 if (!fiemap)
159
160enum {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164};
165
166typedef aio_cb *aio_req;
167typedef aio_cb *aio_req_ornot;
168
169enum {
170 PRI_MIN = -4,
171 PRI_MAX = 4,
172
173 DEFAULT_PRI = 0,
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189
190static thread_t main_tid;
191static int main_sig;
192static int block_sig_level;
193
194void block_sig ()
195{
196 sigset_t ss;
197
198 if (block_sig_level++)
199 return; 185 return;
200 186
201 if (!main_sig) 187 req->ptr1 = fiemap;
188
189 fiemap->fm_start = req->offs;
190 fiemap->fm_length = req->size;
191 fiemap->fm_flags = req->int2;
192 fiemap->fm_extent_count = count;
193
194 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
202 return; 195 return;
203 196
204 sigemptyset (&ss); 197 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 198 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 200 goto done;
208 201
209void unblock_sig () 202 /* else we have to loop -
210{ 203 * it would be tempting (atcually I tried that first) to just query the
211 sigset_t ss; 204 * number of extents needed, but linux often feels like not returning all
205 * extents, without telling us it left any out. this complicates
206 * this quite a bit.
207 */
212 208
213 if (--block_sig_level) 209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 210
216 if (!main_sig) 211 for (;;)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 { 212 {
249 closedir (wrk->dirp); 213 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
250 wrk->dirp = 0; 214 char scratch[3072];
251 } 215 struct fiemap *incmap = (struct fiemap *)scratch;
252 216
253 if (wrk->dbuf) 217 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 218 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 219 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 220 incmap->fm_flags = fiemap->fm_flags;
257 } 221 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 222
260static void worker_free (worker *wrk) 223 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap))
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready ()
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending ()
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads ()
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0; 224 return;
355 225
356 --q->size; 226 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
357 227 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
358 for (pri = NUM_PRI; pri--; ) 228 errno = ENOMEM;
359 {
360 aio_req req = q->qs[pri];
361
362 if (req) 229 if (!fiemap)
230 return;
231
232 req->ptr1 = fiemap;
233
234 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 235 {
364 if (!(q->qs[pri] = req->next)) 236 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 237
367 return req; 238 if (e->fe_logical + e->fe_length >= end_offset)
239 goto done;
240
241 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
242
243 if (e->fe_flags & FIEMAP_EXTENT_LAST)
244 goto done;
245
368 } 246 }
369 } 247 }
370 248
371 abort (); 249done:
372} 250 req->result = 0;
373 251
374static int poll_cb (); 252#else
375static int req_invoke (aio_req req); 253 errno = ENOSYS;
254#endif
255}
256
257/*****************************************************************************/
258
259enum {
260 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
261};
262
263typedef eio_req *aio_req;
264typedef eio_req *aio_req_ornot;
265typedef eio_wd aio_wd;
266
267static SV *on_next_submit;
268static int next_pri = EIO_PRI_DEFAULT;
269static int max_outstanding;
270
271static s_epipe respipe;
272
376static void req_destroy (aio_req req); 273static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 274static void req_cancel (aio_req req);
378 275
276static void
277want_poll (void)
278{
279 /* write a dummy byte to the pipe so fh becomes ready */
280 s_epipe_signal (&respipe);
281}
282
283static void
284done_poll (void)
285{
286 /* read any signals sent by the worker threads */
287 s_epipe_drain (&respipe);
288}
289
379/* must be called at most once */ 290/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 291static SV *
292req_sv (aio_req req, HV *stash)
381{ 293{
382 if (!req->self) 294 if (!req->self)
383 { 295 {
384 req->self = (SV *)newHV (); 296 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 297 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 298 }
387 299
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 300 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 301}
390 302
391static aio_req SvAIO_REQ (SV *sv) 303static SV *
304newSVaio_wd (aio_wd wd)
305{
306 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
307}
308
309static aio_req
310SvAIO_REQ (SV *sv)
392{ 311{
393 MAGIC *mg; 312 MAGIC *mg;
394 313
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 314 if (!SvROK (sv)
315 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
316 || (SvSTASH (SvRV (sv)) != aio_grp_stash
317 && SvSTASH (SvRV (sv)) != aio_req_stash
318 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 319 croak ("object of class IO::AIO::REQ expected");
397 320
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 321 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 322
400 return mg ? (aio_req)mg->mg_ptr : 0; 323 return mg ? (aio_req)mg->mg_ptr : 0;
401} 324}
402 325
326static aio_wd
327SvAIO_WD (SV *sv)
328{
329 if (!SvROK (sv)
330 || SvTYPE (SvRV (sv)) != SVt_PVMG
331 || SvSTASH (SvRV (sv)) != aio_wd_stash)
332 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
333
334 return (aio_wd)(long)SvIVX (SvRV (sv));
335}
336
337static void
403static void aio_grp_feed (aio_req grp) 338aio_grp_feed (aio_req grp)
404{ 339{
405 block_sig (); 340 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 341 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 342 dSP;
414 343
415 ENTER; 344 ENTER;
416 SAVETMPS; 345 SAVETMPS;
417 PUSHMARK (SP); 346 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 347 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 348 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 349 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 350 SPAGAIN;
422 FREETMPS; 351 FREETMPS;
423 LEAVE; 352 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 353 }
434
435 unblock_sig ();
436} 354}
437 355
438static void aio_grp_dec (aio_req grp) 356static void
357req_submit (eio_req *req)
439{ 358{
440 --grp->size; 359 eio_submit (req);
441 360
442 /* call feeder, if applicable */ 361 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 362 {
448 block_sig (); 363 dSP;
364 SV *cb = sv_2mortal (on_next_submit);
449 365
450 if (!req_invoke (grp)) 366 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 367
457 req_destroy (grp); 368 PUSHMARK (SP);
458 unblock_sig (); 369 PUTBACK;
370 call_sv (cb, G_DISCARD | G_EVAL);
459 } 371 }
460} 372}
461 373
374static int
462static int req_invoke (aio_req req) 375req_invoke (eio_req *req)
463{ 376{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 377 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 378 SvREADONLY_off (req->sv2);
468 379
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 380 if (!EIO_CANCELLED (req) && req->callback)
470 { 381 {
382 dSP;
383 static SV *sv_result_cache; /* caches the result integer SV */
384 SV *sv_result;
385
471 ENTER; 386 ENTER;
472 SAVETMPS; 387 SAVETMPS;
473 PUSHMARK (SP); 388 PUSHMARK (SP);
474 EXTEND (SP, 1); 389 EXTEND (SP, 1);
475 390
391 /* do not recreate the result IV from scratch each time */
392 if (expect_true (sv_result_cache))
393 {
394 sv_result = sv_result_cache; sv_result_cache = 0;
395 SvIV_set (sv_result, req->result);
396 SvIOK_only (sv_result);
397 }
398 else
399 {
400 sv_result = newSViv (req->result);
401 SvREADONLY_on (sv_result);
402 }
403
476 switch (req->type) 404 switch (req->type)
477 { 405 {
406 case EIO_WD_OPEN:
407 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
408 break;
409
478 case REQ_READDIR: 410 case EIO_READDIR:
479 { 411 {
480 SV *rv = &PL_sv_undef; 412 SV *rv = &PL_sv_undef;
481 413
482 if (req->result >= 0) 414 if (req->result >= 0)
483 { 415 {
484 int i; 416 int i;
485 char *buf = req->ptr2; 417 char *names = (char *)req->ptr2;
418 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 419 AV *av = newAV ();
487 420
488 av_extend (av, req->result - 1); 421 av_extend (av, req->result - 1);
489 422
490 for (i = 0; i < req->result; ++i) 423 for (i = 0; i < req->result; ++i)
491 { 424 {
492 SV *sv = newSVpv (buf, 0); 425 if (req->int1 & EIO_READDIR_DENTS)
426 {
427 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 428
429 if (req->int1 & EIO_READDIR_CUSTOM2)
430 {
431 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
432 AV *avent = newAV ();
433
434 av_extend (avent, 2);
435
436 if (!sv_type [ent->type])
437 {
438 sv_type [ent->type] = newSViv (ent->type);
439 SvREADONLY_on (sv_type [ent->type]);
440 }
441
442 av_store (avent, 0, namesv);
443 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
444 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
445
446 av_store (av, i, newRV_noinc ((SV *)avent));
447 }
448 else
494 av_store (av, i, sv); 449 av_store (av, i, namesv);
450
451 ++ent;
452 }
453 else
454 {
455 SV *name = newSVpv (names, 0);
456 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 457 names += SvCUR (name) + 1;
458 }
496 } 459 }
497 460
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 461 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 462 }
500 463
501 PUSHs (rv); 464 PUSHs (rv);
465
466 if (req->int1 & EIO_READDIR_CUSTOM1)
467 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 468 }
503 break; 469 break;
504 470
505 case REQ_OPEN: 471 case EIO_OPEN:
506 { 472 {
507 /* convert fd to fh */ 473 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 474 SV *fh = &PL_sv_undef;
509 475
510 if (req->result >= 0) 476 if (req->result >= 0)
… …
512 GV *gv = (GV *)sv_newmortal (); 478 GV *gv = (GV *)sv_newmortal ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 479 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514 char sym [64]; 480 char sym [64];
515 int symlen; 481 int symlen;
516 482
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 483 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518 gv_init (gv, stash, sym, symlen, 0); 484 gv_init (gv, aio_stash, sym, symlen, 0);
519 485
520 symlen = snprintf ( 486 symlen = snprintf (
521 sym, 487 sym,
522 sizeof (sym), 488 sizeof (sym),
523 "%s&=%d", 489 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 490 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result 491 (int)req->result
526 ); 492 );
527 493
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 494 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529 fh = (SV *)gv; 495 fh = (SV *)gv;
530 } 496 }
531 497
532 XPUSHs (fh); 498 PUSHs (fh);
533 } 499 }
534 break; 500 break;
535 501
502 case EIO_STATVFS:
503 case EIO_FSTATVFS:
504 {
505 SV *rv = &PL_sv_undef;
506
507#ifndef _WIN32
508 if (req->result >= 0)
509 {
510 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
511 HV *hv = newHV ();
512
513 rv = sv_2mortal (newRV_noinc ((SV *)hv));
514
515 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
516 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
517 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
518 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
519 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
520 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
521 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
522 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
523 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
524 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
525 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
526 }
527#endif
528
529 PUSHs (rv);
530 }
531
532 break;
533
536 case REQ_GROUP: 534 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 535 req->int1 = 2; /* mark group as finished */
538 536
539 if (req->sv1) 537 if (req->sv1)
540 { 538 {
541 int i; 539 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 543 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 544 PUSHs (*av_fetch (av, i, 0));
547 } 545 }
548 break; 546 break;
549 547
550 case REQ_NOP: 548 case EIO_NOP:
551 case REQ_BUSY: 549 case EIO_BUSY:
552 break; 550 break;
553 551
554 case REQ_READLINK: 552 case EIO_READLINK:
553 case EIO_REALPATH:
555 if (req->result > 0) 554 if (req->result > 0)
555 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
556 break;
557
558 case EIO_STAT:
559 case EIO_LSTAT:
560 case EIO_FSTAT:
561 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
562
563 if (!(PL_laststatval = req->result))
564 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
565 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
566
567 PUSHs (sv_result);
568 break;
569
570 case EIO_SEEK:
571 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
572 break;
573
574 case EIO_READ:
575 {
576 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
577 *SvEND (req->sv2) = 0;
578 SvPOK_only (req->sv2);
579 SvSETMAGIC (req->sv2);
580 PUSHs (sv_result);
581 }
582 break;
583
584 case EIO_CUSTOM:
585 if (req->feed == fiemap)
556 { 586 {
557 SvCUR_set (req->sv2, req->result); 587#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 588 if (!req->result)
589 {
590 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
591
592 if (fiemap->fm_extent_count)
593 {
594 AV *av = newAV ();
595 int i;
596
597 while (fiemap->fm_mapped_extents)
598 {
599 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
600 AV *ext_av = newAV ();
601
602 av_store (ext_av, 3, newSVuv (extent->fe_flags));
603 av_store (ext_av, 2, newSVval64 (extent->fe_length));
604 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
605 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
606
607 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
608 }
609
610 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
611 }
612 else
613 {
614 SvIV_set (sv_result, fiemap->fm_mapped_extents);
615 PUSHs (sv_result);
616 }
617 }
618#endif
560 } 619 }
620 else
621 PUSHs (sv_result);
561 break; 622 break;
562 623
563 case REQ_STAT: 624 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
564 case REQ_LSTAT: 625 if (req->result > 0)
565 case REQ_FSTAT: 626 SvIV_set (sv_result, 0);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 627 /* FALLTHROUGH */
567 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result)));
570 break;
571
572 case REQ_READ:
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result)));
576 break;
577 628
578 default: 629 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 630 PUSHs (sv_result);
580 break; 631 break;
581 } 632 }
582 633
583 errno = req->errorno; 634 errno = req->errorno;
584 635
585 PUTBACK; 636 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL); 637 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 638 SPAGAIN;
639
640 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
641 SvREFCNT_dec (sv_result);
642 else
643 sv_result_cache = sv_result;
588 644
589 FREETMPS; 645 FREETMPS;
590 LEAVE; 646 LEAVE;
647
648 PUTBACK;
591 } 649 }
592 650
593 if (req->grp)
594 {
595 aio_req grp = req->grp;
596
597 /* unlink request */
598 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
599 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
600
601 if (grp->grp_first == req)
602 grp->grp_first = req->grp_next;
603
604 aio_grp_dec (grp);
605 }
606
607 return !SvTRUE (ERRSV); 651 return !!SvTRUE (ERRSV);
608} 652}
609 653
654static void
610static void req_destroy (aio_req req) 655req_destroy (aio_req req)
611{ 656{
612 if (req->self) 657 if (req->self)
613 { 658 {
614 sv_unmagic (req->self, PERL_MAGIC_ext); 659 sv_unmagic (req->self, PERL_MAGIC_ext);
615 SvREFCNT_dec (req->self); 660 SvREFCNT_dec (req->self);
616 } 661 }
617 662
618 SvREFCNT_dec (req->sv1); 663 SvREFCNT_dec (req->sv1);
619 SvREFCNT_dec (req->sv2); 664 SvREFCNT_dec (req->sv2);
665 SvREFCNT_dec (req->sv3);
666 SvREFCNT_dec (req->sv4);
620 SvREFCNT_dec (req->callback); 667 SvREFCNT_dec (req->callback);
621 668
622 if (req->flags & FLAG_PTR2_FREE)
623 free (req->ptr2);
624
625 Safefree (req); 669 free (req);
626} 670}
627 671
672static void
628static void req_cancel_subs (aio_req grp) 673req_cancel_subs (aio_req grp)
629{ 674{
630 aio_req sub;
631
632 if (grp->type != REQ_GROUP) 675 if (grp->type != EIO_GROUP)
633 return; 676 return;
634 677
635 SvREFCNT_dec (grp->sv2); 678 SvREFCNT_dec (grp->sv2);
636 grp->sv2 = 0; 679 grp->sv2 = 0;
637 680
638 for (sub = grp->grp_first; sub; sub = sub->grp_next) 681 eio_grp_cancel (grp);
639 req_cancel (sub);
640} 682}
641 683
642static void req_cancel (aio_req req) 684static void ecb_cold
685create_respipe (void)
643{ 686{
644 req->flags |= FLAG_CANCELLED; 687 if (s_epipe_renew (&respipe))
645 688 croak ("IO::AIO: unable to initialize result pipe");
646 req_cancel_subs (req);
647} 689}
648
649#ifdef USE_SOCKETS_AS_HANDLES
650# define TO_SOCKET(x) (win32_get_osfhandle (x))
651#else
652# define TO_SOCKET(x) (x)
653#endif
654 690
655static void 691static void
656create_respipe () 692poll_wait (void)
657{ 693{
658 int old_readfd = respipe [0];
659
660 if (respipe [1] >= 0)
661 respipe_close (TO_SOCKET (respipe [1]));
662
663#ifdef _WIN32
664 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
665#else
666 if (pipe (respipe))
667#endif
668 croak ("unable to initialize result pipe");
669
670 if (old_readfd >= 0)
671 {
672 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
673 croak ("unable to initialize result pipe(2)");
674
675 respipe_close (respipe [0]);
676 respipe [0] = old_readfd;
677 }
678
679#ifdef _WIN32
680 int arg = 1;
681 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
682 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
683#else
684 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
685 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
686#endif
687 croak ("unable to initialize result pipe(3)");
688
689 respipe_osf [0] = TO_SOCKET (respipe [0]);
690 respipe_osf [1] = TO_SOCKET (respipe [1]);
691}
692
693X_THREAD_PROC (aio_proc);
694
695static void start_thread (void)
696{
697 worker *wrk = calloc (1, sizeof (worker));
698
699 if (!wrk)
700 croak ("unable to allocate worker thread data");
701
702 X_LOCK (wrklock);
703
704 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
705 {
706 wrk->prev = &wrk_first;
707 wrk->next = wrk_first.next;
708 wrk_first.next->prev = wrk;
709 wrk_first.next = wrk;
710 ++started;
711 }
712 else
713 free (wrk);
714
715 X_UNLOCK (wrklock);
716}
717
718static void maybe_start_thread ()
719{
720 if (get_nthreads () >= wanted)
721 return;
722
723 /* todo: maybe use idle here, but might be less exact */
724 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
725 return;
726
727 start_thread ();
728}
729
730static void req_send (aio_req req)
731{
732 block_sig ();
733
734 ++nreqs;
735
736 X_LOCK (reqlock);
737 ++nready;
738 reqq_push (&req_queue, req);
739 X_COND_SIGNAL (reqwait);
740 X_UNLOCK (reqlock);
741
742 unblock_sig ();
743
744 maybe_start_thread ();
745}
746
747static void end_thread (void)
748{
749 aio_req req;
750
751 Newz (0, req, 1, aio_cb);
752
753 req->type = REQ_QUIT;
754 req->pri = PRI_MAX + PRI_BIAS;
755
756 X_LOCK (reqlock);
757 reqq_push (&req_queue, req);
758 X_COND_SIGNAL (reqwait);
759 X_UNLOCK (reqlock);
760
761 X_LOCK (wrklock);
762 --started;
763 X_UNLOCK (wrklock);
764}
765
766static void set_max_idle (int nthreads)
767{
768 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
769 max_idle = nthreads <= 0 ? 1 : nthreads;
770 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
771}
772
773static void min_parallel (int nthreads)
774{
775 if (wanted < nthreads)
776 wanted = nthreads;
777}
778
779static void max_parallel (int nthreads)
780{
781 if (wanted > nthreads)
782 wanted = nthreads;
783
784 while (started > wanted)
785 end_thread ();
786}
787
788static void poll_wait ()
789{
790 fd_set rfd;
791
792 while (nreqs) 694 while (eio_nreqs ())
793 { 695 {
794 int size; 696 int size;
795 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 697
698 X_LOCK (reslock);
796 size = res_queue.size; 699 size = res_queue.size;
797 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 700 X_UNLOCK (reslock);
798 701
799 if (size) 702 if (size)
800 return; 703 return;
801 704
802 maybe_start_thread (); 705 etp_maybe_start_thread ();
803 706
804 FD_ZERO (&rfd); 707 s_epipe_wait (&respipe);
805 FD_SET (respipe [0], &rfd);
806
807 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
808 } 708 }
809} 709}
810 710
811static int poll_cb () 711static int
712poll_cb (void)
812{ 713{
813 dSP;
814 int count = 0;
815 int maxreqs = max_poll_reqs;
816 int do_croak = 0;
817 struct timeval tv_start, tv_now;
818 aio_req req;
819
820 if (max_poll_time)
821 gettimeofday (&tv_start, 0);
822
823 block_sig ();
824
825 for (;;) 714 for (;;)
826 { 715 {
827 for (;;) 716 int res = eio_poll ();
717
718 if (res > 0)
719 croak (0);
720
721 if (!max_outstanding || max_outstanding > eio_nreqs ())
722 return res;
723
724 poll_wait ();
725 }
726}
727
728static void ecb_cold
729reinit (void)
730{
731 create_respipe ();
732
733 if (eio_init (want_poll, done_poll) < 0)
734 croak ("IO::AIO: unable to initialise eio library");
735}
736
737/*****************************************************************************/
738
739#if !_POSIX_MAPPED_FILES
740# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
741# define munmap(addr,length) EIO_ENOSYS ()
742#endif
743
744#if !_POSIX_MEMORY_PROTECTION
745# define mprotect(addr,len,prot) EIO_ENOSYS ()
746# define PROT_NONE 0
747# define PROT_WRITE 0
748# define MAP_PRIVATE 0
749# define MAP_SHARED 0
750# define MAP_FIXED 0
751#endif
752
753#define MMAP_MAGIC PERL_MAGIC_ext
754
755static int ecb_cold
756mmap_free (pTHX_ SV *sv, MAGIC *mg)
757{
758 int old_errno = errno;
759 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
760 errno = old_errno;
761
762 mg->mg_obj = 0; /* just in case */
763
764 SvREADONLY_off (sv);
765
766 if (SvPVX (sv) != mg->mg_ptr)
767 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
768
769 SvCUR_set (sv, 0);
770 SvPVX (sv) = 0;
771 SvOK_off (sv);
772
773 return 0;
774}
775
776static MGVTBL mmap_vtbl = {
777 0, 0, 0, 0, mmap_free
778};
779
780/*****************************************************************************/
781
782static SV *
783get_cb (SV *cb_sv)
784{
785 SvGETMAGIC (cb_sv);
786 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
787}
788
789static aio_req ecb_noinline
790dreq (SV *callback)
791{
792 SV *cb_cv;
793 aio_req req;
794 int req_pri = next_pri;
795 next_pri = EIO_PRI_DEFAULT;
796
797 cb_cv = get_cb (callback);
798
799 req = calloc (sizeof (*req), 1);
800 if (!req)
801 croak ("out of memory during eio_req allocation");
802
803 req->callback = SvREFCNT_inc (cb_cv);
804 req->pri = req_pri;
805
806 return req;
807}
808
809#define dREQ \
810 aio_req req = dreq (callback); \
811
812#define REQ_SEND \
813 PUTBACK; \
814 req_submit (req); \
815 SPAGAIN; \
816 \
817 if (GIMME_V != G_VOID) \
818 XPUSHs (req_sv (req, aio_req_stash));
819
820ecb_inline void
821req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
822{
823 if (expect_false (SvROK (path)))
824 {
825 SV *rv = SvRV (path);
826 SV *wdob;
827
828 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
828 { 829 {
829 maybe_start_thread (); 830 path = AvARRAY (rv)[1];
831 wdob = AvARRAY (rv)[0];
830 832
831 X_LOCK (reslock); 833 if (SvOK (wdob))
832 req = reqq_shift (&res_queue);
833
834 if (req)
835 { 834 {
836 --npending; 835 *wd = SvAIO_WD (wdob);
837 836 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
838 if (!res_queue.size)
839 {
840 /* read any signals sent by the worker threads */
841 char buf [4];
842 while (respipe_read (respipe [0], buf, 4) == 4)
843 ;
844 }
845 }
846
847 X_UNLOCK (reslock);
848
849 if (!req)
850 break;
851
852 --nreqs;
853
854 if (req->type == REQ_GROUP && req->size)
855 {
856 req->int1 = 1; /* mark request as delayed */
857 continue;
858 } 837 }
859 else 838 else
860 { 839 *wd = EIO_INVALID_WD;
861 if (!req_invoke (req))
862 {
863 req_destroy (req);
864 unblock_sig ();
865 croak (0);
866 }
867
868 count++;
869 }
870
871 req_destroy (req);
872
873 if (maxreqs && !--maxreqs)
874 break;
875
876 if (max_poll_time)
877 {
878 gettimeofday (&tv_now, 0);
879
880 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
881 break;
882 }
883 } 840 }
841 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
842 {
843 *wd = (aio_wd)(long)SvIVX (rv);
844 *wdsv = SvREFCNT_inc_NN (rv);
845 *ptr = ".";
846 return; /* path set to "." */
847 }
848 else
849 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
850 }
884 851
885 if (nreqs <= max_outstanding) 852 *pathsv = newSVsv (path);
853 *ptr = SvPVbyte_nolen (*pathsv);
854}
855
856static void ecb_noinline
857req_set_path1 (aio_req req, SV *path)
858{
859 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
860}
861
862static void ecb_noinline
863req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
864{
865 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
866
867 switch (SvTYPE (rv))
868 {
869 case SVt_PVIO:
870 case SVt_PVLV:
871 case SVt_PVGV:
872 req->type = type_fh;
873 req->sv1 = newSVsv (fh_or_path);
874 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
886 break; 875 break;
887 876
888 poll_wait (); 877 default:
889 878 req->type = type_path;
890 ++maxreqs; 879 req_set_path1 (req, fh_or_path);
880 break;
891 } 881 }
892
893 unblock_sig ();
894 return count;
895} 882}
896 883
897/*****************************************************************************/ 884XS(boot_IO__AIO) ecb_cold;
898/* work around various missing functions */
899 885
900#if !HAVE_PREADWRITE
901# define pread aio_pread
902# define pwrite aio_pwrite
903
904/*
905 * make our pread/pwrite safe against themselves, but not against
906 * normal read/write by using a mutex. slows down execution a lot,
907 * but that's your problem, not mine.
908 */
909static mutex_t preadwritelock = X_MUTEX_INIT;
910
911static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
912{
913 ssize_t res;
914 off_t ooffset;
915
916 X_LOCK (preadwritelock);
917 ooffset = lseek (fd, 0, SEEK_CUR);
918 lseek (fd, offset, SEEK_SET);
919 res = read (fd, buf, count);
920 lseek (fd, ooffset, SEEK_SET);
921 X_UNLOCK (preadwritelock);
922
923 return res;
924}
925
926static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
927{
928 ssize_t res;
929 off_t ooffset;
930
931 X_LOCK (preadwritelock);
932 ooffset = lseek (fd, 0, SEEK_CUR);
933 lseek (fd, offset, SEEK_SET);
934 res = write (fd, buf, count);
935 lseek (fd, offset, SEEK_SET);
936 X_UNLOCK (preadwritelock);
937
938 return res;
939}
940#endif
941
942#ifndef HAVE_FUTIMES
943
944# define utimes(path,times) aio_utimes (path, times)
945# define futimes(fd,times) aio_futimes (fd, times)
946
947int aio_utimes (const char *filename, const struct timeval times[2])
948{
949 if (times)
950 {
951 struct utimbuf buf;
952
953 buf.actime = times[0].tv_sec;
954 buf.modtime = times[1].tv_sec;
955
956 return utime (filename, &buf);
957 }
958 else
959 return utime (filename, 0);
960}
961
962int aio_futimes (int fd, const struct timeval tv[2])
963{
964 errno = ENOSYS;
965 return -1;
966}
967
968#endif
969
970#if !HAVE_FDATASYNC
971# define fdatasync fsync
972#endif
973
974#if !HAVE_READAHEAD
975# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
976
977static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
978{
979 size_t todo = count;
980 dBUF;
981
982 while (todo > 0)
983 {
984 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
985
986 pread (fd, aio_buf, len, offset);
987 offset += len;
988 todo -= len;
989 }
990
991 errno = 0;
992 return count;
993}
994
995#endif
996
997#if !HAVE_READDIR_R
998# define readdir_r aio_readdir_r
999
1000static mutex_t readdirlock = X_MUTEX_INIT;
1001
1002static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1003{
1004 X_DIRENT *e;
1005 int errorno;
1006
1007 X_LOCK (readdirlock);
1008
1009 e = readdir (dirp);
1010 errorno = errno;
1011
1012 if (e)
1013 {
1014 *res = ent;
1015 strcpy (ent->d_name, e->d_name);
1016 }
1017 else
1018 *res = 0;
1019
1020 X_UNLOCK (readdirlock);
1021
1022 errno = errorno;
1023 return e ? 0 : -1;
1024}
1025#endif
1026
1027/* sendfile always needs emulation */
1028static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1029{
1030 ssize_t res;
1031
1032 if (!count)
1033 return 0;
1034
1035#if HAVE_SENDFILE
1036# if __linux
1037 res = sendfile (ofd, ifd, &offset, count);
1038
1039# elif __freebsd
1040 /*
1041 * Of course, the freebsd sendfile is a dire hack with no thoughts
1042 * wasted on making it similar to other I/O functions.
1043 */
1044 {
1045 off_t sbytes;
1046 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1047
1048 if (res < 0 && sbytes)
1049 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1050 res = sbytes;
1051 }
1052
1053# elif __hpux
1054 res = sendfile (ofd, ifd, offset, count, 0, 0);
1055
1056# elif __solaris
1057 {
1058 struct sendfilevec vec;
1059 size_t sbytes;
1060
1061 vec.sfv_fd = ifd;
1062 vec.sfv_flag = 0;
1063 vec.sfv_off = offset;
1064 vec.sfv_len = count;
1065
1066 res = sendfilev (ofd, &vec, 1, &sbytes);
1067
1068 if (res < 0 && sbytes)
1069 res = sbytes;
1070 }
1071
1072# endif
1073#else
1074 res = -1;
1075 errno = ENOSYS;
1076#endif
1077
1078 if (res < 0
1079 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1080#if __solaris
1081 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1082#endif
1083 )
1084 )
1085 {
1086 /* emulate sendfile. this is a major pain in the ass */
1087 dBUF;
1088
1089 res = 0;
1090
1091 while (count)
1092 {
1093 ssize_t cnt;
1094
1095 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1096
1097 if (cnt <= 0)
1098 {
1099 if (cnt && !res) res = -1;
1100 break;
1101 }
1102
1103 cnt = write (ofd, aio_buf, cnt);
1104
1105 if (cnt <= 0)
1106 {
1107 if (cnt && !res) res = -1;
1108 break;
1109 }
1110
1111 offset += cnt;
1112 res += cnt;
1113 count -= cnt;
1114 }
1115 }
1116
1117 return res;
1118}
1119
1120/* read a full directory */
1121static void scandir_ (aio_req req, worker *self)
1122{
1123 DIR *dirp;
1124 union
1125 {
1126 X_DIRENT d;
1127 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1128 } *u;
1129 X_DIRENT *entp;
1130 char *name, *names;
1131 int memlen = 4096;
1132 int memofs = 0;
1133 int res = 0;
1134
1135 X_LOCK (wrklock);
1136 self->dirp = dirp = opendir (req->ptr1);
1137 self->dbuf = u = malloc (sizeof (*u));
1138 req->flags |= FLAG_PTR2_FREE;
1139 req->ptr2 = names = malloc (memlen);
1140 X_UNLOCK (wrklock);
1141
1142 if (dirp && u && names)
1143 for (;;)
1144 {
1145 errno = 0;
1146 readdir_r (dirp, &u->d, &entp);
1147
1148 if (!entp)
1149 break;
1150
1151 name = entp->d_name;
1152
1153 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1154 {
1155 int len = strlen (name) + 1;
1156
1157 res++;
1158
1159 while (memofs + len > memlen)
1160 {
1161 memlen *= 2;
1162 X_LOCK (wrklock);
1163 req->ptr2 = names = realloc (names, memlen);
1164 X_UNLOCK (wrklock);
1165
1166 if (!names)
1167 break;
1168 }
1169
1170 memcpy (names + memofs, name, len);
1171 memofs += len;
1172 }
1173 }
1174
1175 if (errno)
1176 res = -1;
1177
1178 req->result = res;
1179}
1180
1181/*****************************************************************************/
1182
1183X_THREAD_PROC (aio_proc)
1184{
1185 {//D
1186 aio_req req;
1187 struct timespec ts;
1188 worker *self = (worker *)thr_arg;
1189
1190 /* try to distribute timeouts somewhat randomly */
1191 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1192
1193 for (;;)
1194 {
1195 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1196
1197 X_LOCK (reqlock);
1198
1199 for (;;)
1200 {
1201 self->req = req = reqq_shift (&req_queue);
1202
1203 if (req)
1204 break;
1205
1206 ++idle;
1207
1208 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1209 == ETIMEDOUT)
1210 {
1211 if (idle > max_idle)
1212 {
1213 --idle;
1214 X_UNLOCK (reqlock);
1215 X_LOCK (wrklock);
1216 --started;
1217 X_UNLOCK (wrklock);
1218 goto quit;
1219 }
1220
1221 /* we are allowed to idle, so do so without any timeout */
1222 X_COND_WAIT (reqwait, reqlock);
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224 }
1225
1226 --idle;
1227 }
1228
1229 --nready;
1230
1231 X_UNLOCK (reqlock);
1232
1233 errno = 0; /* strictly unnecessary */
1234
1235 if (!(req->flags & FLAG_CANCELLED))
1236 switch (req->type)
1237 {
1238 case REQ_READ: req->result = req->offs >= 0
1239 ? pread (req->int1, req->ptr1, req->size, req->offs)
1240 : read (req->int1, req->ptr1, req->size); break;
1241 case REQ_WRITE: req->result = req->offs >= 0
1242 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1243 : write (req->int1, req->ptr1, req->size); break;
1244
1245 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1246 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1247
1248 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1249 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1250 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1251
1252 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1253 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1254 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1255 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1256 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1257 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1258
1259 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1260 case REQ_CLOSE: req->result = PerlIO_close ((PerlIO *)req->ptr1); break;
1261 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1262 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1263 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1264 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1265 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1266 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1267 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1268 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1269
1270 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1271 case REQ_FSYNC: req->result = fsync (req->int1); break;
1272 case REQ_READDIR: scandir_ (req, self); break;
1273
1274 case REQ_BUSY:
1275#ifdef _WIN32
1276 Sleep (req->nv1 * 1000.);
1277#else
1278 {
1279 struct timeval tv;
1280
1281 tv.tv_sec = req->nv1;
1282 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1283
1284 req->result = select (0, 0, 0, 0, &tv);
1285 }
1286#endif
1287 break;
1288
1289 case REQ_UTIME:
1290 case REQ_FUTIME:
1291 {
1292 struct timeval tv[2];
1293 struct timeval *times;
1294
1295 if (req->nv1 != -1. || req->nv2 != -1.)
1296 {
1297 tv[0].tv_sec = req->nv1;
1298 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1299 tv[1].tv_sec = req->nv2;
1300 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1301
1302 times = tv;
1303 }
1304 else
1305 times = 0;
1306
1307
1308 req->result = req->type == REQ_FUTIME
1309 ? futimes (req->int1, times)
1310 : utimes (req->ptr1, times);
1311 }
1312
1313 case REQ_GROUP:
1314 case REQ_NOP:
1315 break;
1316
1317 case REQ_QUIT:
1318 goto quit;
1319
1320 default:
1321 req->result = -1;
1322 break;
1323 }
1324
1325 req->errorno = errno;
1326
1327 X_LOCK (reslock);
1328
1329 ++npending;
1330
1331 if (!reqq_push (&res_queue, req))
1332 {
1333 /* write a dummy byte to the pipe so fh becomes ready */
1334 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1335
1336 /* optionally signal the main thread asynchronously */
1337 if (main_sig)
1338 pthread_kill (main_tid, main_sig);
1339 }
1340
1341 self->req = 0;
1342 worker_clear (self);
1343
1344 X_UNLOCK (reslock);
1345 }
1346
1347quit:
1348 X_LOCK (wrklock);
1349 worker_free (self);
1350 X_UNLOCK (wrklock);
1351
1352 return 0;
1353 }//D
1354}
1355
1356/*****************************************************************************/
1357
1358static void atfork_prepare (void)
1359{
1360 X_LOCK (wrklock);
1361 X_LOCK (reqlock);
1362 X_LOCK (reslock);
1363#if !HAVE_PREADWRITE
1364 X_LOCK (preadwritelock);
1365#endif
1366#if !HAVE_READDIR_R
1367 X_LOCK (readdirlock);
1368#endif
1369}
1370
1371static void atfork_parent (void)
1372{
1373#if !HAVE_READDIR_R
1374 X_UNLOCK (readdirlock);
1375#endif
1376#if !HAVE_PREADWRITE
1377 X_UNLOCK (preadwritelock);
1378#endif
1379 X_UNLOCK (reslock);
1380 X_UNLOCK (reqlock);
1381 X_UNLOCK (wrklock);
1382}
1383
1384static void atfork_child (void)
1385{
1386 aio_req prv;
1387
1388 while (prv = reqq_shift (&req_queue))
1389 req_destroy (prv);
1390
1391 while (prv = reqq_shift (&res_queue))
1392 req_destroy (prv);
1393
1394 while (wrk_first.next != &wrk_first)
1395 {
1396 worker *wrk = wrk_first.next;
1397
1398 if (wrk->req)
1399 req_destroy (wrk->req);
1400
1401 worker_clear (wrk);
1402 worker_free (wrk);
1403 }
1404
1405 started = 0;
1406 idle = 0;
1407 nreqs = 0;
1408 nready = 0;
1409 npending = 0;
1410
1411 create_respipe ();
1412
1413 atfork_parent ();
1414}
1415
1416#define dREQ \
1417 aio_req req; \
1418 int req_pri = next_pri; \
1419 next_pri = DEFAULT_PRI + PRI_BIAS; \
1420 \
1421 if (SvOK (callback) && !SvROK (callback)) \
1422 croak ("callback must be undef or of reference type"); \
1423 \
1424 Newz (0, req, 1, aio_cb); \
1425 if (!req) \
1426 croak ("out of memory during aio_req allocation"); \
1427 \
1428 req->callback = newSVsv (callback); \
1429 req->pri = req_pri
1430
1431#define REQ_SEND \
1432 req_send (req); \
1433 \
1434 if (GIMME_V != G_VOID) \
1435 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1436
1437MODULE = IO::AIO PACKAGE = IO::AIO 886MODULE = IO::AIO PACKAGE = IO::AIO
1438 887
1439PROTOTYPES: ENABLE 888PROTOTYPES: ENABLE
1440 889
1441BOOT: 890BOOT:
1442{ 891{
892 static const struct {
893 const char *name;
894 IV iv;
895 } *civ, const_iv[] = {
896# define const_niv(name, value) { # name, (IV) value },
897# define const_iv(name) { # name, (IV) name },
898# define const_eio(name) { # name, (IV) EIO_ ## name },
899
900 /* you have to re-run ./gendef0 after adding/Removing any constants here */
901
902 const_iv (ENOSYS)
903 const_iv (EXDEV)
904 const_iv (EBADR)
905
906 const_iv (O_RDONLY)
907 const_iv (O_WRONLY)
908 const_iv (O_RDWR)
909 const_iv (O_CREAT)
910 const_iv (O_TRUNC)
911 const_iv (O_EXCL)
912 const_iv (O_APPEND)
913
914 const_iv (O_ASYNC)
915 const_iv (O_DIRECT)
916 const_iv (O_NOATIME)
917
918 const_iv (O_CLOEXEC)
919 const_iv (O_NOCTTY)
920 const_iv (O_NOFOLLOW)
921 const_iv (O_NONBLOCK)
922 const_iv (O_EXEC)
923 const_iv (O_SEARCH)
924 const_iv (O_DIRECTORY)
925 const_iv (O_DSYNC)
926 const_iv (O_RSYNC)
927 const_iv (O_SYNC)
928 const_iv (O_TTY_INIT)
929
930 const_iv (S_IFIFO)
931 const_iv (S_IFCHR)
932 const_iv (S_IFBLK)
933 const_iv (S_IFLNK)
934 const_iv (S_IFREG)
935 const_iv (S_IFDIR)
936 const_iv (S_IFWHT)
937 const_iv (S_IFSOCK)
938 const_iv (S_IFMT)
939
940 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
941 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
942 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
943 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
944 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
945 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
946
947 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
948 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
949 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
950 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
951 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
952
953 const_iv (ST_RDONLY)
954 const_iv (ST_NOSUID)
955 const_iv (ST_NODEV)
956 const_iv (ST_NOEXEC)
957 const_iv (ST_SYNCHRONOUS)
958 const_iv (ST_MANDLOCK)
959 const_iv (ST_WRITE)
960 const_iv (ST_APPEND)
961 const_iv (ST_IMMUTABLE)
962 const_iv (ST_NOATIME)
963 const_iv (ST_NODIRATIME)
964 const_iv (ST_RELATIME)
965
966 const_iv (PROT_NONE)
967 const_iv (PROT_EXEC)
968 const_iv (PROT_READ)
969 const_iv (PROT_WRITE)
970
971 /*const_iv (MAP_FIXED)*/
972 const_iv (MAP_PRIVATE)
973 const_iv (MAP_SHARED)
974 const_iv (MAP_ANONYMOUS)
975
976 /* linuxish */
977 const_iv (MAP_HUGETLB)
978 const_iv (MAP_LOCKED)
979 const_iv (MAP_NORESERVE)
980 const_iv (MAP_POPULATE)
981 const_iv (MAP_NONBLOCK)
982
983 const_iv (FIEMAP_FLAG_SYNC)
984 const_iv (FIEMAP_FLAG_XATTR)
985 const_iv (FIEMAP_FLAGS_COMPAT)
986 const_iv (FIEMAP_EXTENT_LAST)
987 const_iv (FIEMAP_EXTENT_UNKNOWN)
988 const_iv (FIEMAP_EXTENT_DELALLOC)
989 const_iv (FIEMAP_EXTENT_ENCODED)
990 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
991 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
992 const_iv (FIEMAP_EXTENT_DATA_INLINE)
993 const_iv (FIEMAP_EXTENT_DATA_TAIL)
994 const_iv (FIEMAP_EXTENT_UNWRITTEN)
995 const_iv (FIEMAP_EXTENT_MERGED)
996 const_iv (FIEMAP_EXTENT_SHARED)
997
998 const_iv (SPLICE_F_MOVE)
999 const_iv (SPLICE_F_NONBLOCK)
1000 const_iv (SPLICE_F_MORE)
1001 const_iv (SPLICE_F_GIFT)
1002
1003 const_iv (SEEK_DATA)
1004 const_iv (SEEK_HOLE)
1005
1006 /* libeio constants */
1007 const_eio (SEEK_SET)
1008 const_eio (SEEK_CUR)
1009 const_eio (SEEK_END)
1010
1011 const_eio (MCL_FUTURE)
1012 const_eio (MCL_CURRENT)
1013
1014 const_eio (MS_ASYNC)
1015 const_eio (MS_INVALIDATE)
1016 const_eio (MS_SYNC)
1017
1018 const_eio (MT_MODIFY)
1019
1020 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1021 const_eio (SYNC_FILE_RANGE_WRITE)
1022 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1023
1024 const_eio (FALLOC_FL_KEEP_SIZE)
1025 const_eio (FALLOC_FL_PUNCH_HOLE)
1026
1027 const_eio (READDIR_DENTS)
1028 const_eio (READDIR_DIRS_FIRST)
1029 const_eio (READDIR_STAT_ORDER)
1030 const_eio (READDIR_FOUND_UNKNOWN)
1031
1032 const_eio (DT_UNKNOWN)
1033 const_eio (DT_FIFO)
1034 const_eio (DT_CHR)
1035 const_eio (DT_DIR)
1036 const_eio (DT_BLK)
1037 const_eio (DT_REG)
1038 const_eio (DT_LNK)
1039 const_eio (DT_SOCK)
1040 const_eio (DT_WHT)
1041 };
1042
1443 stash = gv_stashpv ("IO::AIO", 1); 1043 aio_stash = gv_stashpv ("IO::AIO" , 1);
1044 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1045 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1046 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1444 1047
1445 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1048 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1446 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1049 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1447 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1448 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1449 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1450#ifdef _WIN32
1451 X_MUTEX_CHECK (wrklock);
1452 X_MUTEX_CHECK (reslock);
1453 X_MUTEX_CHECK (reqlock);
1454 X_MUTEX_CHECK (reqwait);
1455 X_MUTEX_CHECK (preadwritelock);
1456 X_MUTEX_CHECK (readdirlock);
1457 1050
1458 X_COND_CHECK (reqwait); 1051 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1459#else
1460 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1461 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1462#endif
1463 1052
1464 create_respipe (); 1053 reinit ();
1465
1466 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1467} 1054}
1468 1055
1469void 1056void
1057reinit ()
1058 PROTOTYPE:
1059
1060void
1470max_poll_reqs (int nreqs) 1061max_poll_reqs (unsigned int nreqs)
1471 PROTOTYPE: $ 1062 PROTOTYPE: $
1472 CODE: 1063 CODE:
1473 max_poll_reqs = nreqs; 1064 eio_set_max_poll_reqs (nreqs);
1474 1065
1475void 1066void
1476max_poll_time (double nseconds) 1067max_poll_time (double nseconds)
1477 PROTOTYPE: $ 1068 PROTOTYPE: $
1478 CODE: 1069 CODE:
1479 max_poll_time = nseconds * AIO_TICKS; 1070 eio_set_max_poll_time (nseconds);
1480 1071
1481void 1072void
1482min_parallel (int nthreads) 1073min_parallel (unsigned int nthreads)
1483 PROTOTYPE: $
1484
1485void
1486max_parallel (int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_idle (int nthreads)
1491 PROTOTYPE: $ 1074 PROTOTYPE: $
1492 CODE: 1075 CODE:
1493 set_max_idle (nthreads); 1076 eio_set_min_parallel (nthreads);
1494 1077
1495int 1078void
1496max_outstanding (int maxreqs) 1079max_parallel (unsigned int nthreads)
1497 PROTOTYPE: $ 1080 PROTOTYPE: $
1498 CODE: 1081 CODE:
1499 RETVAL = max_outstanding; 1082 eio_set_max_parallel (nthreads);
1083
1084void
1085max_idle (unsigned int nthreads)
1086 PROTOTYPE: $
1087 CODE:
1088 eio_set_max_idle (nthreads);
1089
1090void
1091idle_timeout (unsigned int seconds)
1092 PROTOTYPE: $
1093 CODE:
1094 eio_set_idle_timeout (seconds);
1095
1096void
1097max_outstanding (unsigned int maxreqs)
1098 PROTOTYPE: $
1099 CODE:
1500 max_outstanding = maxreqs; 1100 max_outstanding = maxreqs;
1501 OUTPUT: 1101
1502 RETVAL 1102void
1103aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1104 PPCODE:
1105{
1106 dREQ;
1107
1108 req->type = EIO_WD_OPEN;
1109 req_set_path1 (req, pathname);
1110
1111 REQ_SEND;
1112}
1503 1113
1504void 1114void
1505aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1115aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1506 PROTOTYPE: $$$;$
1507 PPCODE: 1116 PPCODE:
1508{ 1117{
1509 dREQ; 1118 dREQ;
1510 1119
1511 req->type = REQ_OPEN; 1120 req->type = EIO_OPEN;
1512 req->sv1 = newSVsv (pathname); 1121 req_set_path1 (req, pathname);
1513 req->ptr1 = SvPVbyte_nolen (req->sv1);
1514 req->int1 = flags; 1122 req->int1 = flags;
1515 req->mode = mode; 1123 req->int2 = mode;
1516 1124
1517 REQ_SEND; 1125 REQ_SEND;
1518} 1126}
1519 1127
1520void 1128void
1521aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1129aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1522 PROTOTYPE: $;$
1523 ALIAS: 1130 ALIAS:
1524 aio_fsync = REQ_FSYNC 1131 aio_fsync = EIO_FSYNC
1525 aio_fdatasync = REQ_FDATASYNC 1132 aio_fdatasync = EIO_FDATASYNC
1133 aio_syncfs = EIO_SYNCFS
1526 PPCODE: 1134 PPCODE:
1527{ 1135{
1136 int fd = s_fileno_croak (fh, 0);
1528 dREQ; 1137 dREQ;
1529 1138
1530 req->type = ix; 1139 req->type = ix;
1531 req->sv1 = newSVsv (fh); 1140 req->sv1 = newSVsv (fh);
1532 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1141 req->int1 = fd;
1533 1142
1534 REQ_SEND (req); 1143 REQ_SEND;
1144}
1145
1146void
1147aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1148 PPCODE:
1149{
1150 int fd = s_fileno_croak (fh, 0);
1151 dREQ;
1152
1153 req->type = EIO_SYNC_FILE_RANGE;
1154 req->sv1 = newSVsv (fh);
1155 req->int1 = fd;
1156 req->offs = offset;
1157 req->size = nbytes;
1158 req->int2 = flags;
1159
1160 REQ_SEND;
1161}
1162
1163void
1164aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1165 PPCODE:
1166{
1167 int fd = s_fileno_croak (fh, 0);
1168 dREQ;
1169
1170 req->type = EIO_FALLOCATE;
1171 req->sv1 = newSVsv (fh);
1172 req->int1 = fd;
1173 req->int2 = mode;
1174 req->offs = offset;
1175 req->size = len;
1176
1177 REQ_SEND;
1535} 1178}
1536 1179
1537void 1180void
1538aio_close (SV *fh, SV *callback=&PL_sv_undef) 1181aio_close (SV *fh, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $;$
1540 PPCODE: 1182 PPCODE:
1541{ 1183{
1542 PerlIO *io = IoIFP (sv_2io (fh)); 1184 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1543 int fd = PerlIO_fileno (io); 1185 int fd = s_fileno_croak (fh, 0);
1544
1545 if (fd < 0)
1546 croak ("aio_close called with fd-less filehandle");
1547
1548 PerlIO_binmode (aTHX_ io, 0, 0, 0);
1549
1550 {
1551 dREQ; 1186 dREQ;
1552 1187
1188 if (expect_false (close_fd < 0))
1189 {
1190 int pipefd [2];
1191
1192 if (
1193#ifdef _WIN32
1194 _pipe (pipefd, 1, _O_BINARY) < 0
1195#else
1196 pipe (pipefd) < 0
1197 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1198#endif
1199 || close (pipefd [1]) < 0
1200 )
1201 abort (); /*D*/
1202
1203 close_fd = pipefd [0];
1204 }
1205
1206 req->type = EIO_DUP2;
1207 req->int1 = close_fd;
1208 req->sv2 = newSVsv (fh);
1209 req->int2 = fd;
1210
1211 REQ_SEND;
1212}
1213
1214void
1215aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1216 PPCODE:
1217{
1218 int fd = s_fileno_croak (fh, 0);
1219 dREQ;
1220
1553 req->type = REQ_CLOSE; 1221 req->type = EIO_SEEK;
1554 req->sv1 = newSVsv (fh); 1222 req->sv1 = newSVsv (fh);
1555 req->ptr1 = (void *)io; 1223 req->int1 = fd;
1224 req->offs = SvVAL64 (offset);
1225 req->int2 = whence;
1556 1226
1557 REQ_SEND (req); 1227 REQ_SEND;
1558 }
1559} 1228}
1560 1229
1561void 1230void
1562aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1231aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1563 ALIAS: 1232 ALIAS:
1564 aio_read = REQ_READ 1233 aio_read = EIO_READ
1565 aio_write = REQ_WRITE 1234 aio_write = EIO_WRITE
1566 PROTOTYPE: $$$$$;$
1567 PPCODE: 1235 PPCODE:
1568{ 1236{
1569 STRLEN svlen; 1237 STRLEN svlen;
1238 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1570 char *svptr = SvPVbyte (data, svlen); 1239 char *svptr = SvPVbyte (data, svlen);
1571 UV len = SvUV (length); 1240 UV len = SvUV (length);
1572 1241
1573 SvUPGRADE (data, SVt_PV);
1574 SvPOK_on (data);
1575
1576 if (dataoffset < 0) 1242 if (dataoffset < 0)
1577 dataoffset += svlen; 1243 dataoffset += svlen;
1578 1244
1579 if (dataoffset < 0 || dataoffset > svlen) 1245 if (dataoffset < 0 || dataoffset > svlen)
1580 croak ("dataoffset outside of data scalar"); 1246 croak ("dataoffset outside of data scalar");
1581 1247
1582 if (ix == REQ_WRITE) 1248 if (ix == EIO_WRITE)
1583 { 1249 {
1584 /* write: check length and adjust. */ 1250 /* write: check length and adjust. */
1585 if (!SvOK (length) || len + dataoffset > svlen) 1251 if (!SvOK (length) || len + dataoffset > svlen)
1586 len = svlen - dataoffset; 1252 len = svlen - dataoffset;
1587 } 1253 }
1588 else 1254 else
1589 { 1255 {
1590 /* read: grow scalar as necessary */ 1256 /* read: check type and grow scalar as necessary */
1257 SvUPGRADE (data, SVt_PV);
1258 if (SvLEN (data) >= SvCUR (data))
1591 svptr = SvGROW (data, len + dataoffset + 1); 1259 svptr = SvGROW (data, len + dataoffset + 1);
1260 else if (SvCUR (data) < len + dataoffset)
1261 croak ("length + dataoffset outside of scalar, and cannot grow");
1592 } 1262 }
1593
1594 if (len < 0)
1595 croak ("length must not be negative");
1596 1263
1597 { 1264 {
1598 dREQ; 1265 dREQ;
1599 1266
1600 req->type = ix; 1267 req->type = ix;
1601 req->sv1 = newSVsv (fh); 1268 req->sv1 = newSVsv (fh);
1602 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1269 req->int1 = fd;
1603 : IoOFP (sv_2io (fh)));
1604 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1270 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1605 req->size = len; 1271 req->size = len;
1606 req->sv2 = SvREFCNT_inc (data); 1272 req->sv2 = SvREFCNT_inc (data);
1607 req->ptr1 = (char *)svptr + dataoffset; 1273 req->ptr2 = (char *)svptr + dataoffset;
1608 req->stroffset = dataoffset; 1274 req->stroffset = dataoffset;
1609 1275
1610 if (!SvREADONLY (data)) 1276 if (!SvREADONLY (data))
1611 { 1277 {
1612 SvREADONLY_on (data); 1278 SvREADONLY_on (data);
… …
1616 REQ_SEND; 1282 REQ_SEND;
1617 } 1283 }
1618} 1284}
1619 1285
1620void 1286void
1621aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1287aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1622 PROTOTYPE: $$;$ 1288 ALIAS:
1289 aio_readlink = EIO_READLINK
1290 aio_realpath = EIO_REALPATH
1623 PPCODE: 1291 PPCODE:
1624{ 1292{
1625 SV *data;
1626 dREQ; 1293 dREQ;
1627 1294
1628 data = newSV (NAME_MAX);
1629 SvPOK_on (data);
1630
1631 req->type = REQ_READLINK; 1295 req->type = ix;
1632 req->sv1 = newSVsv (path); 1296 req_set_path1 (req, pathname);
1633 req->ptr2 = SvPVbyte_nolen (req->sv1);
1634 req->sv2 = data;
1635 req->ptr1 = SvPVbyte_nolen (data);
1636 1297
1637 REQ_SEND; 1298 REQ_SEND;
1638} 1299}
1639 1300
1640void 1301void
1641aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1302aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1642 PROTOTYPE: $$$$;$
1643 PPCODE: 1303 PPCODE:
1644{ 1304{
1305 int ifd = s_fileno_croak (in_fh , 0);
1306 int ofd = s_fileno_croak (out_fh, 1);
1645 dREQ; 1307 dREQ;
1646 1308
1647 req->type = REQ_SENDFILE; 1309 req->type = EIO_SENDFILE;
1648 req->sv1 = newSVsv (out_fh); 1310 req->sv1 = newSVsv (out_fh);
1649 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1311 req->int1 = ofd;
1650 req->sv2 = newSVsv (in_fh); 1312 req->sv2 = newSVsv (in_fh);
1651 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1313 req->int2 = ifd;
1652 req->offs = SvVAL64 (in_offset); 1314 req->offs = in_offset;
1653 req->size = length; 1315 req->size = length;
1654 1316
1655 REQ_SEND; 1317 REQ_SEND;
1656} 1318}
1657 1319
1658void 1320void
1659aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1321aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1660 PROTOTYPE: $$$;$
1661 PPCODE: 1322 PPCODE:
1662{ 1323{
1324 int fd = s_fileno_croak (fh, 0);
1663 dREQ; 1325 dREQ;
1664 1326
1665 req->type = REQ_READAHEAD; 1327 req->type = EIO_READAHEAD;
1666 req->sv1 = newSVsv (fh); 1328 req->sv1 = newSVsv (fh);
1667 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1329 req->int1 = fd;
1668 req->offs = SvVAL64 (offset); 1330 req->offs = offset;
1669 req->size = length; 1331 req->size = length;
1670 1332
1671 REQ_SEND; 1333 REQ_SEND;
1672} 1334}
1673 1335
1674void 1336void
1675aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1337aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1676 ALIAS: 1338 ALIAS:
1677 aio_stat = REQ_STAT 1339 aio_stat = EIO_STAT
1678 aio_lstat = REQ_LSTAT 1340 aio_lstat = EIO_LSTAT
1341 aio_statvfs = EIO_STATVFS
1679 PPCODE: 1342 PPCODE:
1680{ 1343{
1681 dREQ; 1344 dREQ;
1682 1345
1683 req->ptr2 = malloc (sizeof (Stat_t)); 1346 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1684 if (!req->ptr2)
1685 {
1686 req_destroy (req);
1687 croak ("out of memory during aio_stat statdata allocation");
1688 }
1689
1690 req->flags |= FLAG_PTR2_FREE;
1691 req->sv1 = newSVsv (fh_or_path);
1692
1693 if (SvPOK (fh_or_path))
1694 {
1695 req->type = ix;
1696 req->ptr1 = SvPVbyte_nolen (req->sv1);
1697 }
1698 else
1699 {
1700 req->type = REQ_FSTAT;
1701 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1702 }
1703 1347
1704 REQ_SEND; 1348 REQ_SEND;
1705} 1349}
1350
1351UV
1352major (UV dev)
1353 ALIAS:
1354 minor = 1
1355 CODE:
1356 RETVAL = ix ? major (dev) : minor (dev);
1357 OUTPUT:
1358 RETVAL
1359
1360UV
1361makedev (UV maj, UV min)
1362 CODE:
1363 RETVAL = makedev (maj, min);
1364 OUTPUT:
1365 RETVAL
1706 1366
1707void 1367void
1708aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1368aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1709 PPCODE: 1369 PPCODE:
1710{ 1370{
1711 dREQ; 1371 dREQ;
1712 1372
1713 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1373 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1714 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1374 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1715 req->sv1 = newSVsv (fh_or_path); 1375 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1716
1717 if (SvPOK (fh_or_path))
1718 {
1719 req->type = REQ_UTIME;
1720 req->ptr1 = SvPVbyte_nolen (req->sv1);
1721 }
1722 else
1723 {
1724 req->type = REQ_FUTIME;
1725 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1726 }
1727 1376
1728 REQ_SEND; 1377 REQ_SEND;
1729} 1378}
1730 1379
1731void 1380void
1732aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1381aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1733 PPCODE: 1382 PPCODE:
1734{ 1383{
1735 dREQ; 1384 dREQ;
1736 1385
1737 req->sv1 = newSVsv (fh_or_path);
1738 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1386 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1739 1387 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1740 if (SvPOK (fh_or_path))
1741 {
1742 req->type = REQ_TRUNCATE;
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 }
1745 else
1746 {
1747 req->type = REQ_FTRUNCATE;
1748 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1749 }
1750 1388
1751 REQ_SEND; 1389 REQ_SEND;
1752} 1390}
1753 1391
1754void 1392void
1755aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1393aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1756 PPCODE: 1394 PPCODE:
1757{ 1395{
1758 dREQ; 1396 dREQ;
1759 1397
1760 req->mode = mode; 1398 req->int2 = mode;
1761 req->sv1 = newSVsv (fh_or_path); 1399 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1762
1763 if (SvPOK (fh_or_path))
1764 {
1765 req->type = REQ_CHMOD;
1766 req->ptr1 = SvPVbyte_nolen (req->sv1);
1767 }
1768 else
1769 {
1770 req->type = REQ_FCHMOD;
1771 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1772 }
1773 1400
1774 REQ_SEND; 1401 REQ_SEND;
1775} 1402}
1776 1403
1777void 1404void
… …
1780{ 1407{
1781 dREQ; 1408 dREQ;
1782 1409
1783 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1410 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1784 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1411 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1785 req->sv1 = newSVsv (fh_or_path); 1412 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1786 1413
1787 if (SvPOK (fh_or_path)) 1414 REQ_SEND;
1788 { 1415}
1789 req->type = REQ_CHOWN; 1416
1790 req->ptr1 = SvPVbyte_nolen (req->sv1); 1417void
1791 } 1418aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1792 else 1419 PPCODE:
1793 { 1420{
1794 req->type = REQ_FCHOWN; 1421 dREQ;
1795 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1422
1796 } 1423 req->type = EIO_READDIR;
1424 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1425
1426 if (flags & EIO_READDIR_DENTS)
1427 req->int1 |= EIO_READDIR_CUSTOM2;
1428
1429 req_set_path1 (req, pathname);
1430
1431 REQ_SEND;
1432}
1433
1434void
1435aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1436 PPCODE:
1437{
1438 dREQ;
1439
1440 req->type = EIO_MKDIR;
1441 req->int2 = mode;
1442 req_set_path1 (req, pathname);
1797 1443
1798 REQ_SEND; 1444 REQ_SEND;
1799} 1445}
1800 1446
1801void 1447void
1802aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1448aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1803 ALIAS: 1449 ALIAS:
1804 aio_unlink = REQ_UNLINK 1450 aio_unlink = EIO_UNLINK
1805 aio_rmdir = REQ_RMDIR 1451 aio_rmdir = EIO_RMDIR
1806 aio_readdir = REQ_READDIR 1452 aio_readdir = EIO_READDIR
1807 PPCODE: 1453 PPCODE:
1808{ 1454{
1809 dREQ; 1455 dREQ;
1810 1456
1811 req->type = ix; 1457 req->type = ix;
1812 req->sv1 = newSVsv (pathname); 1458 req_set_path1 (req, pathname);
1813 req->ptr1 = SvPVbyte_nolen (req->sv1);
1814
1815 REQ_SEND;
1816}
1817
1818void
1819aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1820 PPCODE:
1821{
1822 dREQ;
1823
1824 req->type = REQ_MKDIR;
1825 req->sv1 = newSVsv (pathname);
1826 req->ptr1 = SvPVbyte_nolen (req->sv1);
1827 req->mode = mode;
1828 1459
1829 REQ_SEND; 1460 REQ_SEND;
1830} 1461}
1831 1462
1832void 1463void
1833aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1464aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1834 ALIAS: 1465 ALIAS:
1835 aio_link = REQ_LINK 1466 aio_link = EIO_LINK
1836 aio_symlink = REQ_SYMLINK 1467 aio_symlink = EIO_SYMLINK
1837 aio_rename = REQ_RENAME 1468 aio_rename = EIO_RENAME
1838 PPCODE: 1469 PPCODE:
1839{ 1470{
1471 eio_wd wd2 = 0;
1840 dREQ; 1472 dREQ;
1841 1473
1842 req->type = ix; 1474 req->type = ix;
1843 req->sv2 = newSVsv (oldpath); 1475 req_set_path1 (req, oldpath);
1844 req->ptr2 = SvPVbyte_nolen (req->sv2); 1476 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1845 req->sv1 = newSVsv (newpath); 1477 req->int3 = (long)wd2;
1846 req->ptr1 = SvPVbyte_nolen (req->sv1);
1847 1478
1848 REQ_SEND; 1479 REQ_SEND;
1849} 1480}
1850 1481
1851void 1482void
1852aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1483aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1853 PPCODE: 1484 PPCODE:
1854{ 1485{
1855 dREQ; 1486 dREQ;
1856 1487
1857 req->type = REQ_MKNOD; 1488 req->type = EIO_MKNOD;
1858 req->sv1 = newSVsv (pathname);
1859 req->ptr1 = SvPVbyte_nolen (req->sv1);
1860 req->mode = (mode_t)mode; 1489 req->int2 = (mode_t)mode;
1861 req->offs = dev; 1490 req->offs = dev;
1491 req_set_path1 (req, pathname);
1862 1492
1863 REQ_SEND; 1493 REQ_SEND;
1864} 1494}
1865 1495
1866void 1496void
1497aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1498 ALIAS:
1499 aio_mtouch = EIO_MTOUCH
1500 aio_msync = EIO_MSYNC
1501 PPCODE:
1502{
1503 STRLEN svlen;
1504 char *svptr = SvPVbyte (data, svlen);
1505 UV len = SvUV (length);
1506
1507 if (offset < 0)
1508 offset += svlen;
1509
1510 if (offset < 0 || offset > svlen)
1511 croak ("offset outside of scalar");
1512
1513 if (!SvOK (length) || len + offset > svlen)
1514 len = svlen - offset;
1515
1516 {
1517 dREQ;
1518
1519 req->type = ix;
1520 req->sv2 = SvREFCNT_inc (data);
1521 req->ptr2 = (char *)svptr + offset;
1522 req->size = len;
1523 req->int1 = flags;
1524
1525 REQ_SEND;
1526 }
1527}
1528
1529void
1530aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1531 PPCODE:
1532{
1533 STRLEN svlen;
1534 char *svptr = SvPVbyte (data, svlen);
1535 UV len = SvUV (length);
1536
1537 if (offset < 0)
1538 offset += svlen;
1539
1540 if (offset < 0 || offset > svlen)
1541 croak ("offset outside of scalar");
1542
1543 if (!SvOK (length) || len + offset > svlen)
1544 len = svlen - offset;
1545
1546 {
1547 dREQ;
1548
1549 req->type = EIO_MLOCK;
1550 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr2 = (char *)svptr + offset;
1552 req->size = len;
1553
1554 REQ_SEND;
1555 }
1556}
1557
1558void
1559aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1560 PPCODE:
1561{
1562 dREQ;
1563
1564 req->type = EIO_MLOCKALL;
1565 req->int1 = flags;
1566
1567 REQ_SEND;
1568}
1569
1570void
1571aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1572 PPCODE:
1573{
1574 int fd = s_fileno_croak (fh, 0);
1575 dREQ;
1576
1577 req->type = EIO_CUSTOM;
1578 req->sv1 = newSVsv (fh);
1579 req->int1 = fd;
1580
1581 req->feed = fiemap;
1582#if HAVE_FIEMAP
1583 /* keep our fingers crossed that the next two types are 64 bit */
1584 req->offs = start;
1585 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1586 req->int2 = flags;
1587 req->int3 = SvOK (count) ? SvIV (count) : -1;
1588#endif
1589
1590 REQ_SEND;
1591}
1592
1593void
1867aio_busy (double delay, SV *callback=&PL_sv_undef) 1594aio_busy (double delay, SV *callback=&PL_sv_undef)
1868 PPCODE: 1595 PPCODE:
1869{ 1596{
1870 dREQ; 1597 dREQ;
1871 1598
1872 req->type = REQ_BUSY; 1599 req->type = EIO_BUSY;
1873 req->nv1 = delay < 0. ? 0. : delay; 1600 req->nv1 = delay < 0. ? 0. : delay;
1874 1601
1875 REQ_SEND; 1602 REQ_SEND;
1876} 1603}
1877 1604
1878void 1605void
1879aio_group (SV *callback=&PL_sv_undef) 1606aio_group (SV *callback=&PL_sv_undef)
1880 PROTOTYPE: ;$
1881 PPCODE: 1607 PPCODE:
1882{ 1608{
1883 dREQ; 1609 dREQ;
1884 1610
1885 req->type = REQ_GROUP; 1611 req->type = EIO_GROUP;
1886 1612
1887 req_send (req); 1613 req_submit (req);
1888 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1614 XPUSHs (req_sv (req, aio_grp_stash));
1889} 1615}
1890 1616
1891void 1617void
1892aio_nop (SV *callback=&PL_sv_undef) 1618aio_nop (SV *callback=&PL_sv_undef)
1619 ALIAS:
1620 aio_nop = EIO_NOP
1621 aio_sync = EIO_SYNC
1893 PPCODE: 1622 PPCODE:
1894{ 1623{
1895 dREQ; 1624 dREQ;
1896 1625
1897 req->type = REQ_NOP; 1626 req->type = ix;
1898 1627
1899 REQ_SEND; 1628 REQ_SEND;
1900} 1629}
1901 1630
1902int 1631int
1903aioreq_pri (int pri = 0) 1632aioreq_pri (int pri = 0)
1904 PROTOTYPE: ;$
1905 CODE: 1633 CODE:
1906 RETVAL = next_pri - PRI_BIAS; 1634 RETVAL = next_pri;
1907 if (items > 0) 1635 if (items > 0)
1908 { 1636 {
1909 if (pri < PRI_MIN) pri = PRI_MIN; 1637 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1910 if (pri > PRI_MAX) pri = PRI_MAX; 1638 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1911 next_pri = pri + PRI_BIAS; 1639 next_pri = pri;
1912 } 1640 }
1913 OUTPUT: 1641 OUTPUT:
1914 RETVAL 1642 RETVAL
1915 1643
1916void 1644void
1917aioreq_nice (int nice = 0) 1645aioreq_nice (int nice = 0)
1918 CODE: 1646 CODE:
1919 nice = next_pri - nice; 1647 nice = next_pri - nice;
1920 if (nice < PRI_MIN) nice = PRI_MIN; 1648 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1921 if (nice > PRI_MAX) nice = PRI_MAX; 1649 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1922 next_pri = nice + PRI_BIAS; 1650 next_pri = nice;
1923 1651
1924void 1652void
1925flush () 1653flush ()
1926 PROTOTYPE:
1927 CODE: 1654 CODE:
1928 while (nreqs) 1655 while (eio_nreqs ())
1929 { 1656 {
1930 poll_wait (); 1657 poll_wait ();
1931 poll_cb (); 1658 poll_cb ();
1932 } 1659 }
1933 1660
1934int 1661int
1935poll() 1662poll ()
1936 PROTOTYPE:
1937 CODE: 1663 CODE:
1938 poll_wait (); 1664 poll_wait ();
1939 RETVAL = poll_cb (); 1665 RETVAL = poll_cb ();
1940 OUTPUT: 1666 OUTPUT:
1941 RETVAL 1667 RETVAL
1942 1668
1943int 1669int
1944poll_fileno() 1670poll_fileno ()
1945 PROTOTYPE:
1946 CODE: 1671 CODE:
1947 RETVAL = respipe [0]; 1672 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT: 1673 OUTPUT:
1949 RETVAL 1674 RETVAL
1950 1675
1951int 1676int
1952poll_cb(...) 1677poll_cb (...)
1953 PROTOTYPE: 1678 PROTOTYPE:
1954 CODE: 1679 CODE:
1955 RETVAL = poll_cb (); 1680 RETVAL = poll_cb ();
1956 OUTPUT: 1681 OUTPUT:
1957 RETVAL 1682 RETVAL
1958 1683
1959void 1684void
1960poll_wait() 1685poll_wait ()
1961 PROTOTYPE:
1962 CODE: 1686 CODE:
1963 poll_wait (); 1687 poll_wait ();
1964 1688
1965void
1966setsig (int signum = SIGIO)
1967 PROTOTYPE: ;$
1968 CODE:
1969{
1970 if (block_sig_level)
1971 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1972
1973 X_LOCK (reslock);
1974 main_tid = pthread_self ();
1975 main_sig = signum;
1976 X_UNLOCK (reslock);
1977
1978 if (main_sig && npending)
1979 pthread_kill (main_tid, main_sig);
1980}
1981
1982void
1983aio_block (SV *cb)
1984 PROTOTYPE: &
1985 PPCODE:
1986{
1987 int count;
1988
1989 block_sig ();
1990 PUSHMARK (SP);
1991 PUTBACK;
1992 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1993 SPAGAIN;
1994 unblock_sig ();
1995
1996 if (SvTRUE (ERRSV))
1997 croak (0);
1998
1999 XSRETURN (count);
2000}
2001
2002int 1689int
2003nreqs() 1690nreqs ()
2004 PROTOTYPE:
2005 CODE: 1691 CODE:
2006 RETVAL = nreqs; 1692 RETVAL = eio_nreqs ();
2007 OUTPUT: 1693 OUTPUT:
2008 RETVAL 1694 RETVAL
2009 1695
2010int 1696int
2011nready() 1697nready ()
2012 PROTOTYPE:
2013 CODE: 1698 CODE:
2014 RETVAL = get_nready (); 1699 RETVAL = eio_nready ();
2015 OUTPUT: 1700 OUTPUT:
2016 RETVAL 1701 RETVAL
2017 1702
2018int 1703int
2019npending() 1704npending ()
2020 PROTOTYPE:
2021 CODE: 1705 CODE:
2022 RETVAL = get_npending (); 1706 RETVAL = eio_npending ();
2023 OUTPUT: 1707 OUTPUT:
2024 RETVAL 1708 RETVAL
2025 1709
2026int 1710int
2027nthreads() 1711nthreads ()
2028 PROTOTYPE:
2029 CODE: 1712 CODE:
2030 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1713 RETVAL = eio_nthreads ();
2031 RETVAL = started;
2032 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2033 OUTPUT: 1714 OUTPUT:
2034 RETVAL 1715 RETVAL
2035 1716
1717int
1718fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1719 CODE:
1720 RETVAL = posix_fadvise (fh, offset, length, advice);
1721 OUTPUT:
1722 RETVAL
1723
1724IV
1725sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1726 CODE:
1727 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1728 OUTPUT:
1729 RETVAL
1730
1731void
1732mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1733 PPCODE:
1734 sv_unmagic (scalar, MMAP_MAGIC);
1735{
1736 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1737 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1738 if (addr == (void *)-1)
1739 XSRETURN_NO;
1740
1741 sv_force_normal (scalar);
1742
1743 /* we store the length in mg_obj, as namlen is I32 :/ */
1744 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1745 ->mg_obj = (SV *)length;
1746
1747 SvUPGRADE (scalar, SVt_PV); /* nop... */
1748
1749 if (!(prot & PROT_WRITE))
1750 SvREADONLY_on (scalar);
1751
1752 if (SvLEN (scalar))
1753 Safefree (SvPVX (scalar));
1754
1755 SvPVX (scalar) = (char *)addr;
1756 SvCUR_set (scalar, length);
1757 SvLEN_set (scalar, 0);
1758 SvPOK_only (scalar);
1759
1760 XSRETURN_YES;
1761}
1762
1763void
1764munmap (SV *scalar)
1765 CODE:
1766 sv_unmagic (scalar, MMAP_MAGIC);
1767
1768int
1769madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1770 ALIAS:
1771 mprotect = 1
1772 CODE:
1773{
1774 STRLEN svlen;
1775 void *addr = SvPVbyte (scalar, svlen);
1776 size_t len = SvUV (length);
1777
1778 if (offset < 0)
1779 offset += svlen;
1780
1781 if (offset < 0 || offset > svlen)
1782 croak ("offset outside of scalar");
1783
1784 if (!SvOK (length) || len + offset > svlen)
1785 len = svlen - offset;
1786
1787 addr = (void *)(((intptr_t)addr) + offset);
1788 eio_page_align (&addr, &len);
1789
1790 switch (ix)
1791 {
1792 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1793 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1794 }
1795}
1796 OUTPUT:
1797 RETVAL
1798
1799int
1800munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1801 CODE:
1802{
1803 STRLEN svlen;
1804 void *addr = SvPVbyte (scalar, svlen);
1805 size_t len = SvUV (length);
1806
1807 if (offset < 0)
1808 offset += svlen;
1809
1810 if (offset < 0 || offset > svlen)
1811 croak ("offset outside of scalar");
1812
1813 if (!SvOK (length) || len + offset > svlen)
1814 len = svlen - offset;
1815
1816 addr = (void *)(((intptr_t)addr) + offset);
1817 eio_page_align (&addr, &len);
1818#if _POSIX_MEMLOCK_RANGE
1819 RETVAL = munlock (addr, len);
1820#else
1821 RETVAL = EIO_ENOSYS ();
1822#endif
1823}
1824 OUTPUT:
1825 RETVAL
1826
1827int
1828munlockall ()
1829 CODE:
1830#if _POSIX_MEMLOCK
1831 munlockall ();
1832#else
1833 RETVAL = EIO_ENOSYS ();
1834#endif
1835 OUTPUT:
1836 RETVAL
1837
1838int
1839splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1840 CODE:
1841{
1842#if HAVE_LINUX_SPLICE
1843 loff_t off_in_, off_out_;
1844 RETVAL = splice (
1845 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1846 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1847 length, flags
1848 );
1849#else
1850 RETVAL = EIO_ENOSYS ();
1851#endif
1852}
1853 OUTPUT:
1854 RETVAL
1855
1856int
1857tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1858 CODE:
1859#if HAVE_LINUX_SPLICE
1860 RETVAL = tee (rfh, wfh, length, flags);
1861#else
1862 RETVAL = EIO_ENOSYS ();
1863#endif
1864 OUTPUT:
1865 RETVAL
1866
1867void _on_next_submit (SV *cb)
1868 CODE:
1869 SvREFCNT_dec (on_next_submit);
1870 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1871
2036PROTOTYPES: DISABLE 1872PROTOTYPES: DISABLE
1873
1874MODULE = IO::AIO PACKAGE = IO::AIO::WD
1875
1876BOOT:
1877{
1878 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1879 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1880}
1881
1882void
1883DESTROY (SV *self)
1884 CODE:
1885{
1886 aio_wd wd = SvAIO_WD (self);
1887#if HAVE_AT
1888 {
1889 SV *callback = &PL_sv_undef;
1890 dREQ; /* clobbers next_pri :/ */
1891 next_pri = req->pri; /* restore next_pri */
1892 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1893 req->type = EIO_WD_CLOSE;
1894 req->wd = wd;
1895 REQ_SEND;
1896 }
1897#else
1898 eio_wd_close_sync (wd);
1899#endif
1900}
2037 1901
2038MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1902MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2039 1903
2040void 1904void
2041cancel (aio_req_ornot req) 1905cancel (aio_req_ornot req)
2042 CODE: 1906 CODE:
2043 req_cancel (req); 1907 eio_cancel (req);
2044 1908
2045void 1909void
2046cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1910cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2047 CODE: 1911 PPCODE:
1912{
1913 if (GIMME_V != G_VOID)
1914 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1915
1916 if (items > 1)
1917 {
1918 SV *cb_cv =get_cb (callback);
1919
2048 SvREFCNT_dec (req->callback); 1920 SvREFCNT_dec (req->callback);
2049 req->callback = newSVsv (callback); 1921 req->callback = SvREFCNT_inc (cb_cv);
1922 }
1923}
2050 1924
2051MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1925MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2052 1926
2053void 1927void
2054add (aio_req grp, ...) 1928add (aio_req grp, ...)
2055 PPCODE: 1929 PPCODE:
2056{ 1930{
2057 int i; 1931 int i;
2058 aio_req req;
2059
2060 if (main_sig && !block_sig_level)
2061 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2062 1932
2063 if (grp->int1 == 2) 1933 if (grp->int1 == 2)
2064 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1934 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2065 1935
2066 for (i = 1; i < items; ++i ) 1936 for (i = 1; i < items; ++i )
2067 { 1937 {
1938 aio_req req;
1939
2068 if (GIMME_V != G_VOID) 1940 if (GIMME_V != G_VOID)
2069 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1941 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2070 1942
2071 req = SvAIO_REQ (ST (i)); 1943 req = SvAIO_REQ (ST (i));
2072 1944
2073 if (req) 1945 if (req)
2074 { 1946 eio_grp_add (grp, req);
2075 ++grp->size;
2076 req->grp = grp;
2077
2078 req->grp_prev = 0;
2079 req->grp_next = grp->grp_first;
2080
2081 if (grp->grp_first)
2082 grp->grp_first->grp_prev = req;
2083
2084 grp->grp_first = req;
2085 }
2086 } 1947 }
2087} 1948}
2088 1949
2089void 1950void
2090cancel_subs (aio_req_ornot req) 1951cancel_subs (aio_req_ornot req)
… …
2099 AV *av; 1960 AV *av;
2100 1961
2101 grp->errorno = errno; 1962 grp->errorno = errno;
2102 1963
2103 av = newAV (); 1964 av = newAV ();
1965 av_extend (av, items - 1);
2104 1966
2105 for (i = 1; i < items; ++i ) 1967 for (i = 1; i < items; ++i )
2106 av_push (av, newSVsv (ST (i))); 1968 av_push (av, newSVsv (ST (i)));
2107 1969
2108 SvREFCNT_dec (grp->sv1); 1970 SvREFCNT_dec (grp->sv1);
… …
2115 grp->errorno = errorno; 1977 grp->errorno = errorno;
2116 1978
2117void 1979void
2118limit (aio_req grp, int limit) 1980limit (aio_req grp, int limit)
2119 CODE: 1981 CODE:
2120 grp->int2 = limit; 1982 eio_grp_limit (grp, limit);
2121 aio_grp_feed (grp);
2122 1983
2123void 1984void
2124feed (aio_req grp, SV *callback=&PL_sv_undef) 1985feed (aio_req grp, SV *callback=&PL_sv_undef)
2125 CODE: 1986 CODE:
2126{ 1987{
2127 SvREFCNT_dec (grp->sv2); 1988 SvREFCNT_dec (grp->sv2);
2128 grp->sv2 = newSVsv (callback); 1989 grp->sv2 = newSVsv (callback);
1990 grp->feed = aio_grp_feed;
2129 1991
2130 if (grp->int2 <= 0) 1992 if (grp->int2 <= 0)
2131 grp->int2 = 2; 1993 grp->int2 = 2;
2132 1994
2133 aio_grp_feed (grp); 1995 eio_grp_limit (grp, grp->int2);
2134} 1996}
2135 1997

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