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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 1.224 by root, Thu Oct 11 03:20:52 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
102#define dBUF \ 158#ifndef PAGESIZE
103 char *aio_buf; \ 159# define PAGESIZE sysconf (_SC_PAGESIZE)
104 X_LOCK (wrklock); \ 160#endif
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
106 X_UNLOCK (wrklock); \
107 if (!aio_buf) \
108 return -1;
109 161
110typedef SV SV8; /* byte-sv, used for argument-checking */ 162/*****************************************************************************/
111 163
112enum { 164static void
113 REQ_QUIT, 165fiemap (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{ 166{
135 struct aio_cb *volatile next; 167 req->result = -1;
136 168
137 SV *callback; 169#if HAVE_FIEMAP
138 SV *sv1, *sv2; 170 /* assume some c99 */
139 void *ptr1, *ptr2; 171 struct fiemap *fiemap = 0;
140 off_t offs; 172 size_t end_offset;
141 size_t size; 173 int count = req->int3;
142 ssize_t result;
143 double nv1, nv2;
144 174
145 STRLEN stroffset; 175 req->flags |= EIO_FLAG_PTR1_FREE;
146 int type;
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150 176
151 unsigned char flags; 177 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
152 unsigned char pri; 178 /* increase in 3.5kb steps */
179 if (count < 0)
180 count = 8;
153 181
154 SV *self; /* the perl counterpart of this request, if any */ 182 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 183 errno = ENOMEM;
156} aio_cb; 184 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; 185 return;
198 186
199 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) < 0)
200 return; 195 return;
201 196
202 sigemptyset (&ss); 197 if (req->int3 >= 0 /* not autosizing */
203 sigaddset (&ss, main_sig); 198 || !fiemap->fm_mapped_extents /* no more extents */
204 pthread_sigmask (SIG_BLOCK, &ss, 0); 199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205} 200 goto done;
206 201
207void unblock_sig () 202 /* else we have to loop -
208{ 203 * it would be tempting (atcually I tried that first) to just query the
209 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 */
210 208
211 if (--block_sig_level) 209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
212 return;
213 210
214 if (!main_sig) 211 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 { 212 {
247 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) */
248 wrk->dirp = 0; 214 char scratch[3072];
249 } 215 struct fiemap *incmap = (struct fiemap *)scratch;
250 216
251 if (wrk->dbuf) 217 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
252 { 218 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
253 free (wrk->dbuf); 219 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
254 wrk->dbuf = 0; 220 incmap->fm_flags = fiemap->fm_flags;
255 } 221 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
256}
257 222
258static void worker_free (worker *wrk) 223 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; 224 return;
353 225
354 --q->size; 226 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
355 227 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
356 for (pri = NUM_PRI; pri--; ) 228 errno = ENOMEM;
357 {
358 aio_req req = q->qs[pri];
359
360 if (req) 229 if (!fiemap)
230 return;
231
232 req->ptr1 = fiemap;
233
234 for (count = 0; count < incmap->fm_mapped_extents; ++count)
361 { 235 {
362 if (!(q->qs[pri] = req->next)) 236 struct fiemap_extent *e = incmap->fm_extents + count;
363 q->qe[pri] = 0;
364 237
365 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
366 } 246 }
367 } 247 }
368 248
369 abort (); 249done:
370} 250 req->result = 0;
371 251
372static int poll_cb (); 252#else
373static 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
374static void req_destroy (aio_req req); 273static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 274static void req_cancel (aio_req req);
376 275
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
377/* must be called at most once */ 290/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 291static SV *
292req_sv (aio_req req, HV *stash)
379{ 293{
380 if (!req->self) 294 if (!req->self)
381 { 295 {
382 req->self = (SV *)newHV (); 296 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 297 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 298 }
385 299
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 300 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 301}
388 302
389static 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)
390{ 311{
391 MAGIC *mg; 312 MAGIC *mg;
392 313
393 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")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 319 croak ("object of class IO::AIO::REQ expected");
395 320
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 321 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 322
398 return mg ? (aio_req)mg->mg_ptr : 0; 323 return mg ? (aio_req)mg->mg_ptr : 0;
399} 324}
400 325
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
401static void aio_grp_feed (aio_req grp) 338aio_grp_feed (aio_req grp)
402{ 339{
403 block_sig (); 340 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 341 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 342 dSP;
412 343
413 ENTER; 344 ENTER;
414 SAVETMPS; 345 SAVETMPS;
415 PUSHMARK (SP); 346 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 347 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 348 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 349 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 350 SPAGAIN;
420 FREETMPS; 351 FREETMPS;
421 LEAVE; 352 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 } 353 }
432
433 unblock_sig ();
434} 354}
435 355
436static void aio_grp_dec (aio_req grp) 356static void
357req_submit (eio_req *req)
437{ 358{
438 --grp->size; 359 eio_submit (req);
439 360
440 /* call feeder, if applicable */ 361 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 362 {
446 block_sig (); 363 dSP;
364 SV *cb = sv_2mortal (on_next_submit);
447 365
448 if (!req_invoke (grp)) 366 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 367
455 req_destroy (grp); 368 PUSHMARK (SP);
456 unblock_sig (); 369 PUTBACK;
370 call_sv (cb, G_DISCARD | G_EVAL);
457 } 371 }
458} 372}
459 373
374static int
460static int req_invoke (aio_req req) 375req_invoke (eio_req *req)
461{ 376{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 377 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 378 SvREADONLY_off (req->sv2);
466 379
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 380 if (!EIO_CANCELLED (req) && req->callback)
468 { 381 {
382 dSP;
383 static SV *sv_result_cache; /* caches the result integer SV */
384 SV *sv_result;
385
469 ENTER; 386 ENTER;
470 SAVETMPS; 387 SAVETMPS;
471 PUSHMARK (SP); 388 PUSHMARK (SP);
472 EXTEND (SP, 1); 389 EXTEND (SP, 1);
473 390
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
474 switch (req->type) 404 switch (req->type)
475 { 405 {
406 case EIO_WD_OPEN:
407 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
408 break;
409
476 case REQ_READDIR: 410 case EIO_READDIR:
477 { 411 {
478 SV *rv = &PL_sv_undef; 412 SV *rv = &PL_sv_undef;
479 413
480 if (req->result >= 0) 414 if (req->result >= 0)
481 { 415 {
482 int i; 416 int i;
483 char *buf = req->ptr2; 417 char *names = (char *)req->ptr2;
418 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 419 AV *av = newAV ();
485 420
486 av_extend (av, req->result - 1); 421 av_extend (av, req->result - 1);
487 422
488 for (i = 0; i < req->result; ++i) 423 for (i = 0; i < req->result; ++i)
489 { 424 {
490 SV *sv = newSVpv (buf, 0); 425 if (req->int1 & EIO_READDIR_DENTS)
426 {
427 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 428
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
492 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);
493 buf += SvCUR (sv) + 1; 457 names += SvCUR (name) + 1;
458 }
494 } 459 }
495 460
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 461 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 462 }
498 463
499 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))));
500 } 468 }
501 break; 469 break;
502 470
503 case REQ_OPEN: 471 case EIO_OPEN:
504 { 472 {
505 /* convert fd to fh */ 473 /* convert fd to fh */
506 SV *fh; 474 SV *fh = &PL_sv_undef;
507 475
508 PUSHs (sv_2mortal (newSViv (req->result))); 476 if (req->result >= 0)
509 PUTBACK; 477 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 478 GV *gv = (GV *)sv_newmortal ();
511 SPAGAIN; 479 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
480 char sym [64];
481 int symlen;
482
483 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
484 gv_init (gv, aio_stash, sym, symlen, 0);
512 485
513 fh = POPs; 486 symlen = snprintf (
514 PUSHMARK (SP); 487 sym,
488 sizeof (sym),
489 "%s&=%d",
490 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
491 (int)req->result
492 );
493
494 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
495 fh = (SV *)gv;
496 }
497
515 XPUSHs (fh); 498 PUSHs (fh);
516 } 499 }
517 break; 500 break;
518 501
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 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
513 * chooses to make it a struct.
514 */
515 unsigned long fsid = 0;
516 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
517
518 rv = sv_2mortal (newRV_noinc ((SV *)hv));
519
520 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
521 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
522 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
523 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
524 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
525 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
526 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
527 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
528 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
529 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
530 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
531 }
532#endif
533
534 PUSHs (rv);
535 }
536
537 break;
538
519 case REQ_GROUP: 539 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 540 req->int1 = 2; /* mark group as finished */
521 541
522 if (req->sv1) 542 if (req->sv1)
523 { 543 {
524 int i; 544 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 548 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 549 PUSHs (*av_fetch (av, i, 0));
530 } 550 }
531 break; 551 break;
532 552
533 case REQ_NOP: 553 case EIO_NOP:
534 case REQ_BUSY: 554 case EIO_BUSY:
535 break; 555 break;
536 556
537 case REQ_READLINK: 557 case EIO_READLINK:
558 case EIO_REALPATH:
538 if (req->result > 0) 559 if (req->result > 0)
560 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
561 break;
562
563 case EIO_STAT:
564 case EIO_LSTAT:
565 case EIO_FSTAT:
566 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
567
568 if (!(PL_laststatval = req->result))
569 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
570 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
571
572 PUSHs (sv_result);
573 break;
574
575 case EIO_SEEK:
576 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
577 break;
578
579 case EIO_READ:
580 {
581 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
582 *SvEND (req->sv2) = 0;
583 SvPOK_only (req->sv2);
584 SvSETMAGIC (req->sv2);
585 PUSHs (sv_result);
586 }
587 break;
588
589 case EIO_CUSTOM:
590 if (req->feed == fiemap)
539 { 591 {
540 SvCUR_set (req->sv2, req->result); 592#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2); 593 if (!req->result)
594 {
595 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
596
597 if (fiemap->fm_extent_count)
598 {
599 AV *av = newAV ();
600 int i;
601
602 while (fiemap->fm_mapped_extents)
603 {
604 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
605 AV *ext_av = newAV ();
606
607 av_store (ext_av, 3, newSVuv (extent->fe_flags));
608 av_store (ext_av, 2, newSVval64 (extent->fe_length));
609 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
610 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
611
612 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
613 }
614
615 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
616 }
617 else
618 {
619 SvIV_set (sv_result, fiemap->fm_mapped_extents);
620 PUSHs (sv_result);
621 }
622 }
623#endif
543 } 624 }
625 else
626 PUSHs (sv_result);
544 break; 627 break;
545 628
546 case REQ_STAT: 629 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
547 case REQ_LSTAT: 630 if (req->result > 0)
548 case REQ_FSTAT: 631 SvIV_set (sv_result, 0);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 632 /* 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;
560 633
561 default: 634 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 635 PUSHs (sv_result);
563 break; 636 break;
564 } 637 }
565 638
566 errno = req->errorno; 639 errno = req->errorno;
567 640
568 PUTBACK; 641 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 642 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 643 SPAGAIN;
644
645 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
646 SvREFCNT_dec (sv_result);
647 else
648 sv_result_cache = sv_result;
571 649
572 FREETMPS; 650 FREETMPS;
573 LEAVE; 651 LEAVE;
652
653 PUTBACK;
574 } 654 }
575 655
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); 656 return !!SvTRUE (ERRSV);
591} 657}
592 658
659static void
593static void req_destroy (aio_req req) 660req_destroy (aio_req req)
594{ 661{
595 if (req->self) 662 if (req->self)
596 { 663 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 664 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 665 SvREFCNT_dec (req->self);
599 } 666 }
600 667
601 SvREFCNT_dec (req->sv1); 668 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 669 SvREFCNT_dec (req->sv2);
670 SvREFCNT_dec (req->sv3);
671 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 672 SvREFCNT_dec (req->callback);
604 673
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 674 free (req);
609} 675}
610 676
677static void
611static void req_cancel_subs (aio_req grp) 678req_cancel_subs (aio_req grp)
612{ 679{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 680 if (grp->type != EIO_GROUP)
616 return; 681 return;
617 682
618 SvREFCNT_dec (grp->sv2); 683 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 684 grp->sv2 = 0;
620 685
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 686 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 687}
624 688
625static void req_cancel (aio_req req) 689static void ecb_cold
690create_respipe (void)
626{ 691{
627 req->flags |= FLAG_CANCELLED; 692 if (s_epipe_renew (&respipe))
628 693 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 694}
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
637 695
638static void 696static void
639create_pipe (int fd[2]) 697poll_wait (void)
640{ 698{
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) 699 while (eio_nreqs ())
757 { 700 {
758 int size; 701 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 702
703 X_LOCK (reslock);
760 size = res_queue.size; 704 size = res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 705 X_UNLOCK (reslock);
762 706
763 if (size) 707 if (size)
764 return; 708 return;
765 709
766 maybe_start_thread (); 710 etp_maybe_start_thread ();
767 711
768 FD_ZERO (&rfd); 712 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 713 }
773} 714}
774 715
775static int poll_cb () 716static int
717poll_cb (void)
776{ 718{
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 (;;) 719 for (;;)
790 { 720 {
791 for (;;) 721 int res = eio_poll ();
722
723 if (res > 0)
724 croak (0);
725
726 if (!max_outstanding || max_outstanding > eio_nreqs ())
727 return res;
728
729 poll_wait ();
730 }
731}
732
733static void ecb_cold
734reinit (void)
735{
736 create_respipe ();
737
738 if (eio_init (want_poll, done_poll) < 0)
739 croak ("IO::AIO: unable to initialise eio library");
740}
741
742/*****************************************************************************/
743
744#if !_POSIX_MAPPED_FILES
745# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
746# define munmap(addr,length) EIO_ENOSYS ()
747#endif
748
749#if !_POSIX_MEMORY_PROTECTION
750# define mprotect(addr,len,prot) EIO_ENOSYS ()
751# define PROT_NONE 0
752# define PROT_WRITE 0
753# define MAP_PRIVATE 0
754# define MAP_SHARED 0
755# define MAP_FIXED 0
756#endif
757
758#define MMAP_MAGIC PERL_MAGIC_ext
759
760static int ecb_cold
761mmap_free (pTHX_ SV *sv, MAGIC *mg)
762{
763 int old_errno = errno;
764 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
765 errno = old_errno;
766
767 mg->mg_obj = 0; /* just in case */
768
769 SvREADONLY_off (sv);
770
771 if (SvPVX (sv) != mg->mg_ptr)
772 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
773
774 SvCUR_set (sv, 0);
775 SvPVX (sv) = 0;
776 SvOK_off (sv);
777
778 return 0;
779}
780
781static MGVTBL mmap_vtbl = {
782 0, 0, 0, 0, mmap_free
783};
784
785/*****************************************************************************/
786
787static SV *
788get_cb (SV *cb_sv)
789{
790 SvGETMAGIC (cb_sv);
791 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
792}
793
794static aio_req ecb_noinline
795dreq (SV *callback)
796{
797 SV *cb_cv;
798 aio_req req;
799 int req_pri = next_pri;
800 next_pri = EIO_PRI_DEFAULT;
801
802 cb_cv = get_cb (callback);
803
804 req = calloc (sizeof (*req), 1);
805 if (!req)
806 croak ("out of memory during eio_req allocation");
807
808 req->callback = SvREFCNT_inc (cb_cv);
809 req->pri = req_pri;
810
811 return req;
812}
813
814#define dREQ \
815 aio_req req = dreq (callback); \
816
817#define REQ_SEND \
818 PUTBACK; \
819 req_submit (req); \
820 SPAGAIN; \
821 \
822 if (GIMME_V != G_VOID) \
823 XPUSHs (req_sv (req, aio_req_stash));
824
825ecb_inline void
826req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
827{
828 if (expect_false (SvROK (path)))
829 {
830 SV *rv = SvRV (path);
831 SV *wdob;
832
833 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
792 { 834 {
793 maybe_start_thread (); 835 path = AvARRAY (rv)[1];
836 wdob = AvARRAY (rv)[0];
794 837
795 X_LOCK (reslock); 838 if (SvOK (wdob))
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 { 839 {
800 --npending; 840 *wd = SvAIO_WD (wdob);
801 841 *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 } 842 }
823 else 843 else
824 { 844 *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 } 845 }
846 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
847 {
848 *wd = (aio_wd)(long)SvIVX (rv);
849 *wdsv = SvREFCNT_inc_NN (rv);
850 *ptr = ".";
851 return; /* path set to "." */
852 }
853 else
854 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
855 }
848 856
849 if (nreqs <= max_outstanding) 857 *pathsv = newSVsv (path);
858 *ptr = SvPVbyte_nolen (*pathsv);
859}
860
861static void ecb_noinline
862req_set_path1 (aio_req req, SV *path)
863{
864 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
865}
866
867static void ecb_noinline
868req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
869{
870 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
871
872 switch (SvTYPE (rv))
873 {
874 case SVt_PVIO:
875 case SVt_PVLV:
876 case SVt_PVGV:
877 req->type = type_fh;
878 req->sv1 = newSVsv (fh_or_path);
879 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850 break; 880 break;
851 881
852 poll_wait (); 882 default:
853 883 req->type = type_path;
854 ++maxreqs; 884 req_set_path1 (req, fh_or_path);
885 break;
855 } 886 }
856
857 unblock_sig ();
858 return count;
859} 887}
860 888
861/*****************************************************************************/ 889XS(boot_IO__AIO) ecb_cold;
862/* work around various missing functions */
863 890
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 891MODULE = IO::AIO PACKAGE = IO::AIO
1405 892
1406PROTOTYPES: ENABLE 893PROTOTYPES: ENABLE
1407 894
1408BOOT: 895BOOT:
1409{ 896{
897 static const struct {
898 const char *name;
899 IV iv;
900 } *civ, const_iv[] = {
901# define const_niv(name, value) { # name, (IV) value },
902# define const_iv(name) { # name, (IV) name },
903# define const_eio(name) { # name, (IV) EIO_ ## name },
904
905 /* you have to re-run ./gendef0 after adding/Removing any constants here */
906
907 const_iv (ENOSYS)
908 const_iv (EXDEV)
909 const_iv (EBADR)
910
911 const_iv (O_RDONLY)
912 const_iv (O_WRONLY)
913 const_iv (O_RDWR)
914 const_iv (O_CREAT)
915 const_iv (O_TRUNC)
916 const_iv (O_EXCL)
917 const_iv (O_APPEND)
918
919 const_iv (O_ASYNC)
920 const_iv (O_DIRECT)
921 const_iv (O_NOATIME)
922
923 const_iv (O_CLOEXEC)
924 const_iv (O_NOCTTY)
925 const_iv (O_NOFOLLOW)
926 const_iv (O_NONBLOCK)
927 const_iv (O_EXEC)
928 const_iv (O_SEARCH)
929 const_iv (O_DIRECTORY)
930 const_iv (O_DSYNC)
931 const_iv (O_RSYNC)
932 const_iv (O_SYNC)
933 const_iv (O_TTY_INIT)
934
935 const_iv (S_IFIFO)
936 const_iv (S_IFCHR)
937 const_iv (S_IFBLK)
938 const_iv (S_IFLNK)
939 const_iv (S_IFREG)
940 const_iv (S_IFDIR)
941 const_iv (S_IFWHT)
942 const_iv (S_IFSOCK)
943 const_iv (S_IFMT)
944
945 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
946 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
947 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
948 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
949 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
950 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
951
952 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
953 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
954 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
955 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
956 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
957
958 const_iv (ST_RDONLY)
959 const_iv (ST_NOSUID)
960 const_iv (ST_NODEV)
961 const_iv (ST_NOEXEC)
962 const_iv (ST_SYNCHRONOUS)
963 const_iv (ST_MANDLOCK)
964 const_iv (ST_WRITE)
965 const_iv (ST_APPEND)
966 const_iv (ST_IMMUTABLE)
967 const_iv (ST_NOATIME)
968 const_iv (ST_NODIRATIME)
969 const_iv (ST_RELATIME)
970
971 const_iv (PROT_NONE)
972 const_iv (PROT_EXEC)
973 const_iv (PROT_READ)
974 const_iv (PROT_WRITE)
975
976 /*const_iv (MAP_FIXED)*/
977 const_iv (MAP_PRIVATE)
978 const_iv (MAP_SHARED)
979 const_iv (MAP_ANONYMOUS)
980
981 /* linuxish */
982 const_iv (MAP_HUGETLB)
983 const_iv (MAP_LOCKED)
984 const_iv (MAP_NORESERVE)
985 const_iv (MAP_POPULATE)
986 const_iv (MAP_NONBLOCK)
987
988 const_iv (FIEMAP_FLAG_SYNC)
989 const_iv (FIEMAP_FLAG_XATTR)
990 const_iv (FIEMAP_FLAGS_COMPAT)
991 const_iv (FIEMAP_EXTENT_LAST)
992 const_iv (FIEMAP_EXTENT_UNKNOWN)
993 const_iv (FIEMAP_EXTENT_DELALLOC)
994 const_iv (FIEMAP_EXTENT_ENCODED)
995 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
996 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
997 const_iv (FIEMAP_EXTENT_DATA_INLINE)
998 const_iv (FIEMAP_EXTENT_DATA_TAIL)
999 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1000 const_iv (FIEMAP_EXTENT_MERGED)
1001 const_iv (FIEMAP_EXTENT_SHARED)
1002
1003 const_iv (SPLICE_F_MOVE)
1004 const_iv (SPLICE_F_NONBLOCK)
1005 const_iv (SPLICE_F_MORE)
1006 const_iv (SPLICE_F_GIFT)
1007
1008 const_iv (SEEK_DATA)
1009 const_iv (SEEK_HOLE)
1010
1011 /* libeio constants */
1012 const_eio (SEEK_SET)
1013 const_eio (SEEK_CUR)
1014 const_eio (SEEK_END)
1015
1016 const_eio (MCL_FUTURE)
1017 const_eio (MCL_CURRENT)
1018
1019 const_eio (MS_ASYNC)
1020 const_eio (MS_INVALIDATE)
1021 const_eio (MS_SYNC)
1022
1023 const_eio (MT_MODIFY)
1024
1025 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1026 const_eio (SYNC_FILE_RANGE_WRITE)
1027 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1028
1029 const_eio (FALLOC_FL_KEEP_SIZE)
1030 const_eio (FALLOC_FL_PUNCH_HOLE)
1031
1032 const_eio (READDIR_DENTS)
1033 const_eio (READDIR_DIRS_FIRST)
1034 const_eio (READDIR_STAT_ORDER)
1035 const_eio (READDIR_FOUND_UNKNOWN)
1036
1037 const_eio (DT_UNKNOWN)
1038 const_eio (DT_FIFO)
1039 const_eio (DT_CHR)
1040 const_eio (DT_DIR)
1041 const_eio (DT_BLK)
1042 const_eio (DT_REG)
1043 const_eio (DT_LNK)
1044 const_eio (DT_SOCK)
1045 const_eio (DT_WHT)
1046 };
1047
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 1048 aio_stash = gv_stashpv ("IO::AIO" , 1);
1049 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1050 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1051 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1411 1052
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1053 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1054 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 1055
1425 X_COND_CHECK (reqwait); 1056 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 1057
1431 create_pipe (respipe); 1058 reinit ();
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434} 1059}
1435 1060
1436void 1061void
1062reinit ()
1063 PROTOTYPE:
1064
1065void
1437max_poll_reqs (int nreqs) 1066max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 1067 PROTOTYPE: $
1439 CODE: 1068 CODE:
1440 max_poll_reqs = nreqs; 1069 eio_set_max_poll_reqs (nreqs);
1441 1070
1442void 1071void
1443max_poll_time (double nseconds) 1072max_poll_time (double nseconds)
1444 PROTOTYPE: $ 1073 PROTOTYPE: $
1445 CODE: 1074 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 1075 eio_set_max_poll_time (nseconds);
1447 1076
1448void 1077void
1449min_parallel (int nthreads) 1078min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 1079 PROTOTYPE: $
1459 CODE: 1080 CODE:
1460 set_max_idle (nthreads); 1081 eio_set_min_parallel (nthreads);
1461 1082
1462int 1083void
1463max_outstanding (int maxreqs) 1084max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 1085 PROTOTYPE: $
1465 CODE: 1086 CODE:
1466 RETVAL = max_outstanding; 1087 eio_set_max_parallel (nthreads);
1088
1089void
1090max_idle (unsigned int nthreads)
1091 PROTOTYPE: $
1092 CODE:
1093 eio_set_max_idle (nthreads);
1094
1095void
1096idle_timeout (unsigned int seconds)
1097 PROTOTYPE: $
1098 CODE:
1099 eio_set_idle_timeout (seconds);
1100
1101void
1102max_outstanding (unsigned int maxreqs)
1103 PROTOTYPE: $
1104 CODE:
1467 max_outstanding = maxreqs; 1105 max_outstanding = maxreqs;
1468 OUTPUT: 1106
1469 RETVAL 1107void
1108aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1109 PPCODE:
1110{
1111 dREQ;
1112
1113 req->type = EIO_WD_OPEN;
1114 req_set_path1 (req, pathname);
1115
1116 REQ_SEND;
1117}
1470 1118
1471void 1119void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1120aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 1121 PPCODE:
1475{ 1122{
1476 dREQ; 1123 dREQ;
1477 1124
1478 req->type = REQ_OPEN; 1125 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 1126 req_set_path1 (req, pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 1127 req->int1 = flags;
1482 req->mode = mode; 1128 req->int2 = mode;
1483 1129
1484 REQ_SEND; 1130 REQ_SEND;
1485} 1131}
1486 1132
1487void 1133void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 1134aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 1135 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 1136 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 1137 aio_fdatasync = EIO_FDATASYNC
1138 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 1139 PPCODE:
1495{ 1140{
1141 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1142 dREQ;
1497 1143
1498 req->type = ix; 1144 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1145 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1146 req->int1 = fd;
1501 1147
1502 REQ_SEND (req); 1148 REQ_SEND;
1149}
1150
1151void
1152aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1153 PPCODE:
1154{
1155 int fd = s_fileno_croak (fh, 0);
1156 dREQ;
1157
1158 req->type = EIO_SYNC_FILE_RANGE;
1159 req->sv1 = newSVsv (fh);
1160 req->int1 = fd;
1161 req->offs = offset;
1162 req->size = nbytes;
1163 req->int2 = flags;
1164
1165 REQ_SEND;
1166}
1167
1168void
1169aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1170 PPCODE:
1171{
1172 int fd = s_fileno_croak (fh, 0);
1173 dREQ;
1174
1175 req->type = EIO_FALLOCATE;
1176 req->sv1 = newSVsv (fh);
1177 req->int1 = fd;
1178 req->int2 = mode;
1179 req->offs = offset;
1180 req->size = len;
1181
1182 REQ_SEND;
1183}
1184
1185void
1186aio_close (SV *fh, SV *callback=&PL_sv_undef)
1187 PPCODE:
1188{
1189 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1190 int fd = s_fileno_croak (fh, 0);
1191 dREQ;
1192
1193 if (expect_false (close_fd < 0))
1194 {
1195 int pipefd [2];
1196
1197 if (
1198#ifdef _WIN32
1199 _pipe (pipefd, 1, _O_BINARY) < 0
1200#else
1201 pipe (pipefd) < 0
1202 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1203#endif
1204 || close (pipefd [1]) < 0
1205 )
1206 abort (); /*D*/
1207
1208 close_fd = pipefd [0];
1209 }
1210
1211 req->type = EIO_DUP2;
1212 req->int1 = close_fd;
1213 req->sv2 = newSVsv (fh);
1214 req->int2 = fd;
1215
1216 REQ_SEND;
1217}
1218
1219void
1220aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1221 PPCODE:
1222{
1223 int fd = s_fileno_croak (fh, 0);
1224 dREQ;
1225
1226 req->type = EIO_SEEK;
1227 req->sv1 = newSVsv (fh);
1228 req->int1 = fd;
1229 req->offs = SvVAL64 (offset);
1230 req->int2 = whence;
1231
1232 REQ_SEND;
1503} 1233}
1504 1234
1505void 1235void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1236aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1507 ALIAS: 1237 ALIAS:
1508 aio_read = REQ_READ 1238 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1239 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1240 PPCODE:
1512{ 1241{
1513 STRLEN svlen; 1242 STRLEN svlen;
1243 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1244 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1245 UV len = SvUV (length);
1516 1246
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1247 if (dataoffset < 0)
1521 dataoffset += svlen; 1248 dataoffset += svlen;
1522 1249
1523 if (dataoffset < 0 || dataoffset > svlen) 1250 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1251 croak ("dataoffset outside of data scalar");
1525 1252
1526 if (ix == REQ_WRITE) 1253 if (ix == EIO_WRITE)
1527 { 1254 {
1528 /* write: check length and adjust. */ 1255 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1256 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1257 len = svlen - dataoffset;
1531 } 1258 }
1532 else 1259 else
1533 { 1260 {
1534 /* read: grow scalar as necessary */ 1261 /* read: check type and grow scalar as necessary */
1262 SvUPGRADE (data, SVt_PV);
1263 if (SvLEN (data) >= SvCUR (data))
1535 svptr = SvGROW (data, len + dataoffset + 1); 1264 svptr = SvGROW (data, len + dataoffset + 1);
1265 else if (SvCUR (data) < len + dataoffset)
1266 croak ("length + dataoffset outside of scalar, and cannot grow");
1536 } 1267 }
1537
1538 if (len < 0)
1539 croak ("length must not be negative");
1540 1268
1541 { 1269 {
1542 dREQ; 1270 dREQ;
1543 1271
1544 req->type = ix; 1272 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1273 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1274 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1275 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1276 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1277 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1278 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1279 req->stroffset = dataoffset;
1553 1280
1554 if (!SvREADONLY (data)) 1281 if (!SvREADONLY (data))
1555 { 1282 {
1556 SvREADONLY_on (data); 1283 SvREADONLY_on (data);
… …
1560 REQ_SEND; 1287 REQ_SEND;
1561 } 1288 }
1562} 1289}
1563 1290
1564void 1291void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1292aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1566 PROTOTYPE: $$;$ 1293 ALIAS:
1294 aio_readlink = EIO_READLINK
1295 aio_realpath = EIO_REALPATH
1567 PPCODE: 1296 PPCODE:
1568{ 1297{
1569 SV *data;
1570 dREQ; 1298 dREQ;
1571 1299
1572 data = newSV (NAME_MAX);
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK; 1300 req->type = ix;
1576 req->sv1 = newSVsv (path); 1301 req_set_path1 (req, pathname);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580 1302
1581 REQ_SEND; 1303 REQ_SEND;
1582} 1304}
1583 1305
1584void 1306void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1307aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE: 1308 PPCODE:
1588{ 1309{
1310 int ifd = s_fileno_croak (in_fh , 0);
1311 int ofd = s_fileno_croak (out_fh, 1);
1589 dREQ; 1312 dREQ;
1590 1313
1591 req->type = REQ_SENDFILE; 1314 req->type = EIO_SENDFILE;
1592 req->sv1 = newSVsv (out_fh); 1315 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1316 req->int1 = ofd;
1594 req->sv2 = newSVsv (in_fh); 1317 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1318 req->int2 = ifd;
1596 req->offs = SvVAL64 (in_offset); 1319 req->offs = in_offset;
1597 req->size = length; 1320 req->size = length;
1598 1321
1599 REQ_SEND; 1322 REQ_SEND;
1600} 1323}
1601 1324
1602void 1325void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1326aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE: 1327 PPCODE:
1606{ 1328{
1329 int fd = s_fileno_croak (fh, 0);
1607 dREQ; 1330 dREQ;
1608 1331
1609 req->type = REQ_READAHEAD; 1332 req->type = EIO_READAHEAD;
1610 req->sv1 = newSVsv (fh); 1333 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1334 req->int1 = fd;
1612 req->offs = SvVAL64 (offset); 1335 req->offs = offset;
1613 req->size = length; 1336 req->size = length;
1614 1337
1615 REQ_SEND; 1338 REQ_SEND;
1616} 1339}
1617 1340
1618void 1341void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1342aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS: 1343 ALIAS:
1621 aio_stat = REQ_STAT 1344 aio_stat = EIO_STAT
1622 aio_lstat = REQ_LSTAT 1345 aio_lstat = EIO_LSTAT
1346 aio_statvfs = EIO_STATVFS
1623 PPCODE: 1347 PPCODE:
1624{ 1348{
1625 dREQ; 1349 dREQ;
1626 1350
1627 req->ptr2 = malloc (sizeof (Stat_t)); 1351 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 1352
1648 REQ_SEND; 1353 REQ_SEND;
1649} 1354}
1355
1356UV
1357major (UV dev)
1358 ALIAS:
1359 minor = 1
1360 CODE:
1361 RETVAL = ix ? major (dev) : minor (dev);
1362 OUTPUT:
1363 RETVAL
1364
1365UV
1366makedev (UV maj, UV min)
1367 CODE:
1368 RETVAL = makedev (maj, min);
1369 OUTPUT:
1370 RETVAL
1650 1371
1651void 1372void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1373aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1653 PPCODE: 1374 PPCODE:
1654{ 1375{
1655 dREQ; 1376 dREQ;
1656 1377
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1378 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1379 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1380 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 1381
1672 REQ_SEND; 1382 REQ_SEND;
1673} 1383}
1674 1384
1675void 1385void
1676aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1386aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1677 PPCODE: 1387 PPCODE:
1678{ 1388{
1679 dREQ; 1389 dREQ;
1680 1390
1681 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1391 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1392 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 1393
1695 REQ_SEND; 1394 REQ_SEND;
1696} 1395}
1697 1396
1698void 1397void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1398aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1700 PPCODE: 1399 PPCODE:
1701{ 1400{
1702 dREQ; 1401 dREQ;
1703 1402
1704 req->mode = mode; 1403 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1404 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 1405
1718 REQ_SEND; 1406 REQ_SEND;
1719} 1407}
1720 1408
1721void 1409void
… …
1724{ 1412{
1725 dREQ; 1413 dREQ;
1726 1414
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1415 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1416 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1417 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1730 1418
1731 if (SvPOK (fh_or_path)) 1419 REQ_SEND;
1732 { 1420}
1733 req->type = REQ_CHOWN; 1421
1734 req->ptr1 = SvPVbyte_nolen (req->sv1); 1422void
1735 } 1423aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1736 else 1424 PPCODE:
1737 { 1425{
1738 req->type = REQ_FCHOWN; 1426 dREQ;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1427
1740 } 1428 req->type = EIO_READDIR;
1429 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1430
1431 if (flags & EIO_READDIR_DENTS)
1432 req->int1 |= EIO_READDIR_CUSTOM2;
1433
1434 req_set_path1 (req, pathname);
1435
1436 REQ_SEND;
1437}
1438
1439void
1440aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1441 PPCODE:
1442{
1443 dREQ;
1444
1445 req->type = EIO_MKDIR;
1446 req->int2 = mode;
1447 req_set_path1 (req, pathname);
1741 1448
1742 REQ_SEND; 1449 REQ_SEND;
1743} 1450}
1744 1451
1745void 1452void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1453aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1747 ALIAS: 1454 ALIAS:
1748 aio_unlink = REQ_UNLINK 1455 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1456 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1457 aio_readdir = EIO_READDIR
1751 PPCODE: 1458 PPCODE:
1752{ 1459{
1753 dREQ; 1460 dREQ;
1754 1461
1755 req->type = ix; 1462 req->type = ix;
1756 req->sv1 = newSVsv (pathname); 1463 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 1464
1773 REQ_SEND; 1465 REQ_SEND;
1774} 1466}
1775 1467
1776void 1468void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1469aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS: 1470 ALIAS:
1779 aio_link = REQ_LINK 1471 aio_link = EIO_LINK
1780 aio_symlink = REQ_SYMLINK 1472 aio_symlink = EIO_SYMLINK
1781 aio_rename = REQ_RENAME 1473 aio_rename = EIO_RENAME
1782 PPCODE: 1474 PPCODE:
1783{ 1475{
1476 eio_wd wd2 = 0;
1784 dREQ; 1477 dREQ;
1785 1478
1786 req->type = ix; 1479 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1480 req_set_path1 (req, oldpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1481 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1789 req->sv1 = newSVsv (newpath); 1482 req->int3 = (long)wd2;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1483
1792 REQ_SEND; 1484 REQ_SEND;
1793} 1485}
1794 1486
1795void 1487void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1488aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1797 PPCODE: 1489 PPCODE:
1798{ 1490{
1799 dREQ; 1491 dREQ;
1800 1492
1801 req->type = REQ_MKNOD; 1493 req->type = EIO_MKNOD;
1802 req->sv1 = newSVsv (pathname);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1);
1804 req->mode = (mode_t)mode; 1494 req->int2 = (mode_t)mode;
1805 req->offs = dev; 1495 req->offs = dev;
1496 req_set_path1 (req, pathname);
1806 1497
1807 REQ_SEND; 1498 REQ_SEND;
1808} 1499}
1809 1500
1810void 1501void
1502aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1503 ALIAS:
1504 aio_mtouch = EIO_MTOUCH
1505 aio_msync = EIO_MSYNC
1506 PPCODE:
1507{
1508 STRLEN svlen;
1509 char *svptr = SvPVbyte (data, svlen);
1510 UV len = SvUV (length);
1511
1512 if (offset < 0)
1513 offset += svlen;
1514
1515 if (offset < 0 || offset > svlen)
1516 croak ("offset outside of scalar");
1517
1518 if (!SvOK (length) || len + offset > svlen)
1519 len = svlen - offset;
1520
1521 {
1522 dREQ;
1523
1524 req->type = ix;
1525 req->sv2 = SvREFCNT_inc (data);
1526 req->ptr2 = (char *)svptr + offset;
1527 req->size = len;
1528 req->int1 = flags;
1529
1530 REQ_SEND;
1531 }
1532}
1533
1534void
1535aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1536 PPCODE:
1537{
1538 STRLEN svlen;
1539 char *svptr = SvPVbyte (data, svlen);
1540 UV len = SvUV (length);
1541
1542 if (offset < 0)
1543 offset += svlen;
1544
1545 if (offset < 0 || offset > svlen)
1546 croak ("offset outside of scalar");
1547
1548 if (!SvOK (length) || len + offset > svlen)
1549 len = svlen - offset;
1550
1551 {
1552 dREQ;
1553
1554 req->type = EIO_MLOCK;
1555 req->sv2 = SvREFCNT_inc (data);
1556 req->ptr2 = (char *)svptr + offset;
1557 req->size = len;
1558
1559 REQ_SEND;
1560 }
1561}
1562
1563void
1564aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1565 PPCODE:
1566{
1567 dREQ;
1568
1569 req->type = EIO_MLOCKALL;
1570 req->int1 = flags;
1571
1572 REQ_SEND;
1573}
1574
1575void
1576aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1577 PPCODE:
1578{
1579 int fd = s_fileno_croak (fh, 0);
1580 dREQ;
1581
1582 req->type = EIO_CUSTOM;
1583 req->sv1 = newSVsv (fh);
1584 req->int1 = fd;
1585
1586 req->feed = fiemap;
1587#if HAVE_FIEMAP
1588 /* keep our fingers crossed that the next two types are 64 bit */
1589 req->offs = start;
1590 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1591 req->int2 = flags;
1592 req->int3 = SvOK (count) ? SvIV (count) : -1;
1593#endif
1594
1595 REQ_SEND;
1596}
1597
1598void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1599aio_busy (double delay, SV *callback=&PL_sv_undef)
1812 PPCODE: 1600 PPCODE:
1813{ 1601{
1814 dREQ; 1602 dREQ;
1815 1603
1816 req->type = REQ_BUSY; 1604 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 1605 req->nv1 = delay < 0. ? 0. : delay;
1818 1606
1819 REQ_SEND; 1607 REQ_SEND;
1820} 1608}
1821 1609
1822void 1610void
1823aio_group (SV *callback=&PL_sv_undef) 1611aio_group (SV *callback=&PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 1612 PPCODE:
1826{ 1613{
1827 dREQ; 1614 dREQ;
1828 1615
1829 req->type = REQ_GROUP; 1616 req->type = EIO_GROUP;
1830 1617
1831 req_send (req); 1618 req_submit (req);
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1619 XPUSHs (req_sv (req, aio_grp_stash));
1833} 1620}
1834 1621
1835void 1622void
1836aio_nop (SV *callback=&PL_sv_undef) 1623aio_nop (SV *callback=&PL_sv_undef)
1624 ALIAS:
1625 aio_nop = EIO_NOP
1626 aio_sync = EIO_SYNC
1837 PPCODE: 1627 PPCODE:
1838{ 1628{
1839 dREQ; 1629 dREQ;
1840 1630
1841 req->type = REQ_NOP; 1631 req->type = ix;
1842 1632
1843 REQ_SEND; 1633 REQ_SEND;
1844} 1634}
1845 1635
1846int 1636int
1847aioreq_pri (int pri = 0) 1637aioreq_pri (int pri = 0)
1848 PROTOTYPE: ;$
1849 CODE: 1638 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1639 RETVAL = next_pri;
1851 if (items > 0) 1640 if (items > 0)
1852 { 1641 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1642 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1643 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1644 next_pri = pri;
1856 } 1645 }
1857 OUTPUT: 1646 OUTPUT:
1858 RETVAL 1647 RETVAL
1859 1648
1860void 1649void
1861aioreq_nice (int nice = 0) 1650aioreq_nice (int nice = 0)
1862 CODE: 1651 CODE:
1863 nice = next_pri - nice; 1652 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1653 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1654 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1655 next_pri = nice;
1867 1656
1868void 1657void
1869flush () 1658flush ()
1870 PROTOTYPE:
1871 CODE: 1659 CODE:
1872 while (nreqs) 1660 while (eio_nreqs ())
1873 { 1661 {
1874 poll_wait (); 1662 poll_wait ();
1875 poll_cb (); 1663 poll_cb ();
1876 } 1664 }
1877 1665
1878int 1666int
1879poll() 1667poll ()
1880 PROTOTYPE:
1881 CODE: 1668 CODE:
1882 poll_wait (); 1669 poll_wait ();
1883 RETVAL = poll_cb (); 1670 RETVAL = poll_cb ();
1884 OUTPUT: 1671 OUTPUT:
1885 RETVAL 1672 RETVAL
1886 1673
1887int 1674int
1888poll_fileno() 1675poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1676 CODE:
1891 RETVAL = respipe [0]; 1677 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1678 OUTPUT:
1893 RETVAL 1679 RETVAL
1894 1680
1895int 1681int
1896poll_cb(...) 1682poll_cb (...)
1897 PROTOTYPE: 1683 PROTOTYPE:
1898 CODE: 1684 CODE:
1899 RETVAL = poll_cb (); 1685 RETVAL = poll_cb ();
1900 OUTPUT: 1686 OUTPUT:
1901 RETVAL 1687 RETVAL
1902 1688
1903void 1689void
1904poll_wait() 1690poll_wait ()
1905 PROTOTYPE:
1906 CODE: 1691 CODE:
1907 poll_wait (); 1692 poll_wait ();
1908 1693
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 1694int
1947nreqs() 1695nreqs ()
1948 PROTOTYPE:
1949 CODE: 1696 CODE:
1950 RETVAL = nreqs; 1697 RETVAL = eio_nreqs ();
1951 OUTPUT: 1698 OUTPUT:
1952 RETVAL 1699 RETVAL
1953 1700
1954int 1701int
1955nready() 1702nready ()
1956 PROTOTYPE:
1957 CODE: 1703 CODE:
1958 RETVAL = get_nready (); 1704 RETVAL = eio_nready ();
1959 OUTPUT: 1705 OUTPUT:
1960 RETVAL 1706 RETVAL
1961 1707
1962int 1708int
1963npending() 1709npending ()
1964 PROTOTYPE:
1965 CODE: 1710 CODE:
1966 RETVAL = get_npending (); 1711 RETVAL = eio_npending ();
1967 OUTPUT: 1712 OUTPUT:
1968 RETVAL 1713 RETVAL
1969 1714
1970int 1715int
1971nthreads() 1716nthreads ()
1972 PROTOTYPE:
1973 CODE: 1717 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1718 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 1719 OUTPUT:
1978 RETVAL 1720 RETVAL
1979 1721
1722int
1723fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1724 CODE:
1725 RETVAL = posix_fadvise (fh, offset, length, advice);
1726 OUTPUT:
1727 RETVAL
1728
1729IV
1730sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1731 CODE:
1732 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1733 OUTPUT:
1734 RETVAL
1735
1736void
1737mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1738 PPCODE:
1739 sv_unmagic (scalar, MMAP_MAGIC);
1740{
1741 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1742 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1743 if (addr == (void *)-1)
1744 XSRETURN_NO;
1745
1746 sv_force_normal (scalar);
1747
1748 /* we store the length in mg_obj, as namlen is I32 :/ */
1749 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1750 ->mg_obj = (SV *)length;
1751
1752 SvUPGRADE (scalar, SVt_PV); /* nop... */
1753
1754 if (!(prot & PROT_WRITE))
1755 SvREADONLY_on (scalar);
1756
1757 if (SvLEN (scalar))
1758 Safefree (SvPVX (scalar));
1759
1760 SvPVX (scalar) = (char *)addr;
1761 SvCUR_set (scalar, length);
1762 SvLEN_set (scalar, 0);
1763 SvPOK_only (scalar);
1764
1765 XSRETURN_YES;
1766}
1767
1768void
1769munmap (SV *scalar)
1770 CODE:
1771 sv_unmagic (scalar, MMAP_MAGIC);
1772
1773int
1774madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1775 ALIAS:
1776 mprotect = 1
1777 CODE:
1778{
1779 STRLEN svlen;
1780 void *addr = SvPVbyte (scalar, svlen);
1781 size_t len = SvUV (length);
1782
1783 if (offset < 0)
1784 offset += svlen;
1785
1786 if (offset < 0 || offset > svlen)
1787 croak ("offset outside of scalar");
1788
1789 if (!SvOK (length) || len + offset > svlen)
1790 len = svlen - offset;
1791
1792 addr = (void *)(((intptr_t)addr) + offset);
1793 eio_page_align (&addr, &len);
1794
1795 switch (ix)
1796 {
1797 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1798 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1799 }
1800}
1801 OUTPUT:
1802 RETVAL
1803
1804int
1805munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1806 CODE:
1807{
1808 STRLEN svlen;
1809 void *addr = SvPVbyte (scalar, svlen);
1810 size_t len = SvUV (length);
1811
1812 if (offset < 0)
1813 offset += svlen;
1814
1815 if (offset < 0 || offset > svlen)
1816 croak ("offset outside of scalar");
1817
1818 if (!SvOK (length) || len + offset > svlen)
1819 len = svlen - offset;
1820
1821 addr = (void *)(((intptr_t)addr) + offset);
1822 eio_page_align (&addr, &len);
1823#if _POSIX_MEMLOCK_RANGE
1824 RETVAL = munlock (addr, len);
1825#else
1826 RETVAL = EIO_ENOSYS ();
1827#endif
1828}
1829 OUTPUT:
1830 RETVAL
1831
1832int
1833munlockall ()
1834 CODE:
1835#if _POSIX_MEMLOCK
1836 munlockall ();
1837#else
1838 RETVAL = EIO_ENOSYS ();
1839#endif
1840 OUTPUT:
1841 RETVAL
1842
1843int
1844splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1845 CODE:
1846{
1847#if HAVE_LINUX_SPLICE
1848 loff_t off_in_, off_out_;
1849 RETVAL = splice (
1850 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1851 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1852 length, flags
1853 );
1854#else
1855 RETVAL = EIO_ENOSYS ();
1856#endif
1857}
1858 OUTPUT:
1859 RETVAL
1860
1861int
1862tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1863 CODE:
1864#if HAVE_LINUX_SPLICE
1865 RETVAL = tee (rfh, wfh, length, flags);
1866#else
1867 RETVAL = EIO_ENOSYS ();
1868#endif
1869 OUTPUT:
1870 RETVAL
1871
1872void _on_next_submit (SV *cb)
1873 CODE:
1874 SvREFCNT_dec (on_next_submit);
1875 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1876
1980PROTOTYPES: DISABLE 1877PROTOTYPES: DISABLE
1878
1879MODULE = IO::AIO PACKAGE = IO::AIO::WD
1880
1881BOOT:
1882{
1883 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1884 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1885}
1886
1887void
1888DESTROY (SV *self)
1889 CODE:
1890{
1891 aio_wd wd = SvAIO_WD (self);
1892#if HAVE_AT
1893 {
1894 SV *callback = &PL_sv_undef;
1895 dREQ; /* clobbers next_pri :/ */
1896 next_pri = req->pri; /* restore next_pri */
1897 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1898 req->type = EIO_WD_CLOSE;
1899 req->wd = wd;
1900 REQ_SEND;
1901 }
1902#else
1903 eio_wd_close_sync (wd);
1904#endif
1905}
1981 1906
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1907MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 1908
1984void 1909void
1985cancel (aio_req_ornot req) 1910cancel (aio_req_ornot req)
1986 CODE: 1911 CODE:
1987 req_cancel (req); 1912 eio_cancel (req);
1988 1913
1989void 1914void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1915cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1991 CODE: 1916 PPCODE:
1917{
1918 if (GIMME_V != G_VOID)
1919 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1920
1921 if (items > 1)
1922 {
1923 SV *cb_cv =get_cb (callback);
1924
1992 SvREFCNT_dec (req->callback); 1925 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 1926 req->callback = SvREFCNT_inc (cb_cv);
1927 }
1928}
1994 1929
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1930MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 1931
1997void 1932void
1998add (aio_req grp, ...) 1933add (aio_req grp, ...)
1999 PPCODE: 1934 PPCODE:
2000{ 1935{
2001 int i; 1936 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 1937
2007 if (grp->int1 == 2) 1938 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1939 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 1940
2010 for (i = 1; i < items; ++i ) 1941 for (i = 1; i < items; ++i )
2011 { 1942 {
1943 aio_req req;
1944
2012 if (GIMME_V != G_VOID) 1945 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1946 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 1947
2015 req = SvAIO_REQ (ST (i)); 1948 req = SvAIO_REQ (ST (i));
2016 1949
2017 if (req) 1950 if (req)
2018 { 1951 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 } 1952 }
2031} 1953}
2032 1954
2033void 1955void
2034cancel_subs (aio_req_ornot req) 1956cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 1965 AV *av;
2044 1966
2045 grp->errorno = errno; 1967 grp->errorno = errno;
2046 1968
2047 av = newAV (); 1969 av = newAV ();
1970 av_extend (av, items - 1);
2048 1971
2049 for (i = 1; i < items; ++i ) 1972 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 1973 av_push (av, newSVsv (ST (i)));
2051 1974
2052 SvREFCNT_dec (grp->sv1); 1975 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 1982 grp->errorno = errorno;
2060 1983
2061void 1984void
2062limit (aio_req grp, int limit) 1985limit (aio_req grp, int limit)
2063 CODE: 1986 CODE:
2064 grp->int2 = limit; 1987 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 1988
2067void 1989void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 1990feed (aio_req grp, SV *callback=&PL_sv_undef)
2069 CODE: 1991 CODE:
2070{ 1992{
2071 SvREFCNT_dec (grp->sv2); 1993 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 1994 grp->sv2 = newSVsv (callback);
1995 grp->feed = aio_grp_feed;
2073 1996
2074 if (grp->int2 <= 0) 1997 if (grp->int2 <= 0)
2075 grp->int2 = 2; 1998 grp->int2 = 2;
2076 1999
2077 aio_grp_feed (grp); 2000 eio_grp_limit (grp, grp->int2);
2078} 2001}
2079 2002

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