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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.226 by root, Sun Jan 6 11:48:14 2013 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
51 #undef send
52 #undef recv
29# undef stat 53 #undef stat
54 #undef lstat
30# undef fstat 55 #undef fstat
31# define lstat stat
32# undef truncate 56 #undef truncate
33# undef ftruncate 57 #undef ftruncate
34# undef open 58 #undef open
59 #undef link
35# undef close 60 #undef close
36# undef unlink 61 #undef unlink
62 #undef mkdir
37# undef rmdir 63 #undef rmdir
38# undef rename 64 #undef rename
39# 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
40 75
41# define chown(a,b,c) (errno = ENOSYS, -1) 76 #define EIO_STRUCT_STAT struct _stati64
42# define fchown(a,b,c) (errno = ENOSYS, -1) 77 #define EIO_STRUCT_STATI64
43# define fchmod(a,b) (errno = ENOSYS, -1)
44# define symlink(a,b) (errno = ENOSYS, -1)
45# define readlink(a,b,c) (errno = ENOSYS, -1)
46# define mknod(a,b,c) (errno = ENOSYS, -1)
47# define truncate(a,b) (errno = ENOSYS, -1)
48# define ftruncate(fd,o) chsize ((fd), (o))
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1)
52# define closedir(fd) (errno = ENOSYS, -1)
53# define mkdir(a,b) mkdir (a)
54 78
55#else 79#else
56 80
57# include "autoconf/config.h"
58# include <sys/time.h> 81 #include <sys/time.h>
59# include <sys/select.h> 82 #include <sys/select.h>
60# include <unistd.h> 83 #include <unistd.h>
61# include <utime.h> 84 #include <utime.h>
62# include <signal.h> 85 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 86
65#endif 87 #define EIO_STRUCT_STAT Stat_t
66 88
67#if HAVE_SENDFILE 89#endif
68# if __linux 90
69# include <sys/sendfile.h> 91/*****************************************************************************/
70# elif __freebsd 92
71# include <sys/socket.h> 93#if __GNUC__ >= 3
72# include <sys/uio.h> 94# define expect(expr,value) __builtin_expect ((expr),(value))
73# elif __hpux 95#else
74# include <sys/socket.h> 96# define expect(expr,value) (expr)
75# elif __solaris /* not yet */ 97#endif
76# 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
77# else 140# else
78# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
79# endif 142# endif
80#endif 143#endif
81 144
82/* number of seconds after which idle threads exit */ 145/* defines all sorts of constants to 0 unless they are already defined */
83#define IDLE_TIMEOUT 10 146#include "def0.h"
84 147
85/* used for struct dirent, AIX doesn't provide it */ 148#ifndef makedev
86#ifndef NAME_MAX 149# define makedev(maj,min) (((maj) << 8) | (min))
87# define NAME_MAX 4096
88#endif 150#endif
89 151#ifndef major
90/* buffer size for various temporary buffers */ 152# define major(dev) ((dev) >> 8)
91#define AIO_BUFSIZE 65536
92
93/* use NV for 32 bit perls as it allows larger offsets */
94#if IVSIZE >= 8
95# define SvVAL64 SvIV
96#else
97# define SvVAL64 SvNV
98#endif 153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
99 157
100#define dBUF \ 158#if PAGESIZE <= 0
101 char *aio_buf; \ 159# define PAGESIZE sysconf (_SC_PAGESIZE)
102 X_LOCK (wrklock); \ 160#endif
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
104 X_UNLOCK (wrklock); \
105 if (!aio_buf) \
106 return -1;
107 161
108typedef SV SV8; /* byte-sv, used for argument-checking */ 162/*****************************************************************************/
109 163
110enum { 164static void
111 REQ_QUIT, 165fiemap (eio_req *req)
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126};
127
128#define AIO_REQ_KLASS "IO::AIO::REQ"
129#define AIO_GRP_KLASS "IO::AIO::GRP"
130
131typedef struct aio_cb
132{ 166{
133 struct aio_cb *volatile next; 167 req->result = -1;
134 168
135 SV *callback; 169#if HAVE_FIEMAP
136 SV *sv1, *sv2; 170 /* assume some c99 */
137 void *ptr1, *ptr2; 171 struct fiemap *fiemap = 0;
138 off_t offs; 172 size_t end_offset;
139 size_t size; 173 int count = req->int3;
140 ssize_t result;
141 double nv1, nv2;
142 174
143 STRLEN stroffset; 175 req->flags |= EIO_FLAG_PTR1_FREE;
144 int type;
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148 176
149 unsigned char flags; 177 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
150 unsigned char pri; 178 /* increase in 3.5kb steps */
179 if (count < 0)
180 count = 8;
151 181
152 SV *self; /* the perl counterpart of this request, if any */ 182 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 183 errno = ENOMEM;
154} aio_cb; 184 if (!fiemap)
155
156enum {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160};
161
162typedef aio_cb *aio_req;
163typedef aio_cb *aio_req_ornot;
164
165enum {
166 PRI_MIN = -4,
167 PRI_MAX = 4,
168
169 DEFAULT_PRI = 0,
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185
186static thread_t main_tid;
187static int main_sig;
188static int block_sig_level;
189
190void block_sig ()
191{
192 sigset_t ss;
193
194 if (block_sig_level++)
195 return; 185 return;
196 186
197 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)
198 return; 195 return;
199 196
200 sigemptyset (&ss); 197 if (req->int3 >= 0 /* not autosizing */
201 sigaddset (&ss, main_sig); 198 || !fiemap->fm_mapped_extents /* no more extents */
202 pthread_sigmask (SIG_BLOCK, &ss, 0); 199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
203} 200 goto done;
204 201
205void unblock_sig () 202 /* else we have to loop -
206{ 203 * it would be tempting (actually I tried that first) to just query the
207 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 */
208 208
209 if (--block_sig_level) 209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
210 return;
211 210
212 if (!main_sig) 211 for (;;)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 { 212 {
245 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) */
246 wrk->dirp = 0; 214 char scratch[3072];
247 } 215 struct fiemap *incmap = (struct fiemap *)scratch;
248 216
249 if (wrk->dbuf) 217 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
250 { 218 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
251 free (wrk->dbuf); 219 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
252 wrk->dbuf = 0; 220 incmap->fm_flags = fiemap->fm_flags;
253 } 221 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
254}
255 222
256static void worker_free (worker *wrk) 223 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0; 224 return;
351 225
352 --q->size; 226 if (!incmap->fm_mapped_extents)
227 goto done;
353 228
354 for (pri = NUM_PRI; pri--; ) 229 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
355 { 230 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
356 aio_req req = q->qs[pri]; 231 errno = ENOMEM;
357
358 if (req) 232 if (!fiemap)
233 return;
234
235 req->ptr1 = fiemap;
236
237 for (count = 0; count < incmap->fm_mapped_extents; ++count)
359 { 238 {
360 if (!(q->qs[pri] = req->next)) 239 struct fiemap_extent *e = incmap->fm_extents + count;
361 q->qe[pri] = 0;
362 240
363 return req; 241 if (e->fe_logical + e->fe_length >= end_offset)
242 goto done;
243
244 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
245
246 if (e->fe_flags & FIEMAP_EXTENT_LAST)
247 goto done;
248
364 } 249 }
365 } 250 }
366 251
367 abort (); 252done:
368} 253 req->result = 0;
369 254
370static int poll_cb (); 255#else
371static int req_invoke (aio_req req); 256 errno = ENOSYS;
257#endif
258}
259
260/*****************************************************************************/
261
262enum {
263 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
264};
265
266typedef eio_req *aio_req;
267typedef eio_req *aio_req_ornot;
268typedef eio_wd aio_wd;
269
270static SV *on_next_submit;
271static int next_pri = EIO_PRI_DEFAULT;
272static int max_outstanding;
273
274static s_epipe respipe;
275
372static void req_destroy (aio_req req); 276static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 277static void req_cancel (aio_req req);
374 278
279static void
280want_poll (void)
281{
282 /* write a dummy byte to the pipe so fh becomes ready */
283 s_epipe_signal (&respipe);
284}
285
286static void
287done_poll (void)
288{
289 /* read any signals sent by the worker threads */
290 s_epipe_drain (&respipe);
291}
292
375/* must be called at most once */ 293/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 294static SV *
295req_sv (aio_req req, HV *stash)
377{ 296{
378 if (!req->self) 297 if (!req->self)
379 { 298 {
380 req->self = (SV *)newHV (); 299 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 300 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 301 }
383 302
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 303 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 304}
386 305
387static aio_req SvAIO_REQ (SV *sv) 306static SV *
307newSVaio_wd (aio_wd wd)
308{
309 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
310}
311
312static aio_req
313SvAIO_REQ (SV *sv)
388{ 314{
389 MAGIC *mg; 315 MAGIC *mg;
390 316
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 317 if (!SvROK (sv)
318 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
319 || (SvSTASH (SvRV (sv)) != aio_grp_stash
320 && SvSTASH (SvRV (sv)) != aio_req_stash
321 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 322 croak ("object of class IO::AIO::REQ expected");
393 323
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 324 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 325
396 return mg ? (aio_req)mg->mg_ptr : 0; 326 return mg ? (aio_req)mg->mg_ptr : 0;
397} 327}
398 328
329static aio_wd
330SvAIO_WD (SV *sv)
331{
332 if (!SvROK (sv)
333 || SvTYPE (SvRV (sv)) != SVt_PVMG
334 || SvSTASH (SvRV (sv)) != aio_wd_stash)
335 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
336
337 return (aio_wd)(long)SvIVX (SvRV (sv));
338}
339
340static void
399static void aio_grp_feed (aio_req grp) 341aio_grp_feed (aio_req grp)
400{ 342{
401 block_sig (); 343 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 344 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 345 dSP;
410 346
411 ENTER; 347 ENTER;
412 SAVETMPS; 348 SAVETMPS;
413 PUSHMARK (SP); 349 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 350 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 351 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 352 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 353 SPAGAIN;
418 FREETMPS; 354 FREETMPS;
419 LEAVE; 355 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 356 }
430
431 unblock_sig ();
432} 357}
433 358
434static void aio_grp_dec (aio_req grp) 359static void
360req_submit (eio_req *req)
435{ 361{
436 --grp->size; 362 eio_submit (req);
437 363
438 /* call feeder, if applicable */ 364 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 365 {
444 block_sig (); 366 dSP;
367 SV *cb = sv_2mortal (on_next_submit);
445 368
446 if (!req_invoke (grp)) 369 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 370
453 req_destroy (grp); 371 PUSHMARK (SP);
454 unblock_sig (); 372 PUTBACK;
373 call_sv (cb, G_DISCARD | G_EVAL);
455 } 374 }
456} 375}
457 376
377static int
458static int req_invoke (aio_req req) 378req_invoke (eio_req *req)
459{ 379{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 380 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 381 SvREADONLY_off (req->sv2);
464 382
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 383 if (!EIO_CANCELLED (req) && req->callback)
466 { 384 {
385 dSP;
386 static SV *sv_result_cache; /* caches the result integer SV */
387 SV *sv_result;
388
467 ENTER; 389 ENTER;
468 SAVETMPS; 390 SAVETMPS;
469 PUSHMARK (SP); 391 PUSHMARK (SP);
470 EXTEND (SP, 1); 392 EXTEND (SP, 1);
471 393
394 /* do not recreate the result IV from scratch each time */
395 if (expect_true (sv_result_cache))
396 {
397 sv_result = sv_result_cache; sv_result_cache = 0;
398 SvIV_set (sv_result, req->result);
399 SvIOK_only (sv_result);
400 }
401 else
402 {
403 sv_result = newSViv (req->result);
404 SvREADONLY_on (sv_result);
405 }
406
472 switch (req->type) 407 switch (req->type)
473 { 408 {
409 case EIO_WD_OPEN:
410 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
411 break;
412
474 case REQ_READDIR: 413 case EIO_READDIR:
475 { 414 {
476 SV *rv = &PL_sv_undef; 415 SV *rv = &PL_sv_undef;
477 416
478 if (req->result >= 0) 417 if (req->result >= 0)
479 { 418 {
480 int i; 419 int i;
481 char *buf = req->ptr2; 420 char *names = (char *)req->ptr2;
421 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 422 AV *av = newAV ();
483 423
484 av_extend (av, req->result - 1); 424 av_extend (av, req->result - 1);
485 425
486 for (i = 0; i < req->result; ++i) 426 for (i = 0; i < req->result; ++i)
487 { 427 {
488 SV *sv = newSVpv (buf, 0); 428 if (req->int1 & EIO_READDIR_DENTS)
429 {
430 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 431
432 if (req->int1 & EIO_READDIR_CUSTOM2)
433 {
434 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
435 AV *avent = newAV ();
436
437 av_extend (avent, 2);
438
439 if (!sv_type [ent->type])
440 {
441 sv_type [ent->type] = newSViv (ent->type);
442 SvREADONLY_on (sv_type [ent->type]);
443 }
444
445 av_store (avent, 0, namesv);
446 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
447 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
448
449 av_store (av, i, newRV_noinc ((SV *)avent));
450 }
451 else
490 av_store (av, i, sv); 452 av_store (av, i, namesv);
453
454 ++ent;
455 }
456 else
457 {
458 SV *name = newSVpv (names, 0);
459 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 460 names += SvCUR (name) + 1;
461 }
492 } 462 }
493 463
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 464 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 465 }
496 466
497 PUSHs (rv); 467 PUSHs (rv);
468
469 if (req->int1 & EIO_READDIR_CUSTOM1)
470 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 471 }
499 break; 472 break;
500 473
501 case REQ_OPEN: 474 case EIO_OPEN:
502 { 475 {
503 /* convert fd to fh */ 476 /* convert fd to fh */
504 SV *fh; 477 SV *fh = &PL_sv_undef;
505 478
506 PUSHs (sv_2mortal (newSViv (req->result))); 479 if (req->result >= 0)
507 PUTBACK; 480 {
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 481 GV *gv = (GV *)sv_newmortal ();
509 SPAGAIN; 482 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
483 char sym [64];
484 int symlen;
485
486 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
487 gv_init (gv, aio_stash, sym, symlen, 0);
510 488
511 fh = POPs; 489 symlen = snprintf (
512 PUSHMARK (SP); 490 sym,
491 sizeof (sym),
492 "%s&=%d",
493 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
494 (int)req->result
495 );
496
497 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
498 fh = (SV *)gv;
499 }
500
513 XPUSHs (fh); 501 PUSHs (fh);
514 } 502 }
515 break; 503 break;
516 504
505 case EIO_STATVFS:
506 case EIO_FSTATVFS:
507 {
508 SV *rv = &PL_sv_undef;
509
510#ifndef _WIN32
511 if (req->result >= 0)
512 {
513 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
514 HV *hv = newHV ();
515 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
516 * chooses to make it a struct.
517 */
518 unsigned long fsid = 0;
519 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
520
521 rv = sv_2mortal (newRV_noinc ((SV *)hv));
522
523 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
524 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
525 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
526 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
527 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
528 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
529 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
530 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
531 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
532 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
533 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
534 }
535#endif
536
537 PUSHs (rv);
538 }
539
540 break;
541
517 case REQ_GROUP: 542 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 543 req->int1 = 2; /* mark group as finished */
519 544
520 if (req->sv1) 545 if (req->sv1)
521 { 546 {
522 int i; 547 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 551 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 552 PUSHs (*av_fetch (av, i, 0));
528 } 553 }
529 break; 554 break;
530 555
531 case REQ_NOP: 556 case EIO_NOP:
532 case REQ_BUSY: 557 case EIO_BUSY:
533 break; 558 break;
534 559
535 case REQ_READLINK: 560 case EIO_READLINK:
561 case EIO_REALPATH:
536 if (req->result > 0) 562 if (req->result > 0)
563 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
564 break;
565
566 case EIO_STAT:
567 case EIO_LSTAT:
568 case EIO_FSTAT:
569 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
570
571 if (!(PL_laststatval = req->result))
572 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
573 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
574
575 PUSHs (sv_result);
576 break;
577
578 case EIO_SEEK:
579 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
580 break;
581
582 case EIO_READ:
583 {
584 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
585 *SvEND (req->sv2) = 0;
586 SvPOK_only (req->sv2);
587 SvSETMAGIC (req->sv2);
588 PUSHs (sv_result);
589 }
590 break;
591
592 case EIO_CUSTOM:
593 if (req->feed == fiemap)
537 { 594 {
538 SvCUR_set (req->sv2, req->result); 595#if HAVE_FIEMAP
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2); 596 if (!req->result)
597 {
598 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
599
600 if (fiemap->fm_extent_count)
601 {
602 AV *av = newAV ();
603 int i;
604
605 while (fiemap->fm_mapped_extents)
606 {
607 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
608 AV *ext_av = newAV ();
609
610 av_store (ext_av, 3, newSVuv (extent->fe_flags));
611 av_store (ext_av, 2, newSVval64 (extent->fe_length));
612 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
613 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
614
615 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
616 }
617
618 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
619 }
620 else
621 {
622 SvIV_set (sv_result, fiemap->fm_mapped_extents);
623 PUSHs (sv_result);
624 }
625 }
626#endif
541 } 627 }
628 else
629 PUSHs (sv_result);
542 break; 630 break;
543 631
544 case REQ_STAT: 632 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
545 case REQ_LSTAT: 633 if (req->result > 0)
546 case REQ_FSTAT: 634 SvIV_set (sv_result, 0);
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 635 /* FALLTHROUGH */
548 PL_laststatval = req->result;
549 PL_statcache = *(Stat_t *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result)));
551 break;
552
553 case REQ_READ:
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
555 *SvEND (req->sv2) = 0;
556 PUSHs (sv_2mortal (newSViv (req->result)));
557 break;
558 636
559 default: 637 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 638 PUSHs (sv_result);
561 break; 639 break;
562 } 640 }
563 641
564 errno = req->errorno; 642 errno = req->errorno;
565 643
566 PUTBACK; 644 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 645 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 646 SPAGAIN;
647
648 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
649 SvREFCNT_dec (sv_result);
650 else
651 sv_result_cache = sv_result;
569 652
570 FREETMPS; 653 FREETMPS;
571 LEAVE; 654 LEAVE;
655
656 PUTBACK;
572 } 657 }
573 658
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 659 return !!SvTRUE (ERRSV);
589} 660}
590 661
662static void
591static void req_destroy (aio_req req) 663req_destroy (aio_req req)
592{ 664{
593 if (req->self) 665 if (req->self)
594 { 666 {
595 sv_unmagic (req->self, PERL_MAGIC_ext); 667 sv_unmagic (req->self, PERL_MAGIC_ext);
596 SvREFCNT_dec (req->self); 668 SvREFCNT_dec (req->self);
597 } 669 }
598 670
599 SvREFCNT_dec (req->sv1); 671 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 672 SvREFCNT_dec (req->sv2);
673 SvREFCNT_dec (req->sv3);
674 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 675 SvREFCNT_dec (req->callback);
602 676
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 677 free (req);
607} 678}
608 679
680static void
609static void req_cancel_subs (aio_req grp) 681req_cancel_subs (aio_req grp)
610{ 682{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 683 if (grp->type != EIO_GROUP)
614 return; 684 return;
615 685
616 SvREFCNT_dec (grp->sv2); 686 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 687 grp->sv2 = 0;
618 688
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 689 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 690}
622 691
623static void req_cancel (aio_req req) 692static void ecb_cold
693create_respipe (void)
624{ 694{
625 req->flags |= FLAG_CANCELLED; 695 if (s_epipe_renew (&respipe))
626 696 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 697}
629 698
630X_THREAD_PROC (aio_proc); 699static void
631 700poll_wait (void)
632static void start_thread (void)
633{ 701{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait ()
726{
727 fd_set rfd;
728
729 while (nreqs) 702 while (eio_nreqs ())
730 { 703 {
731 int size; 704 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 705
706 X_LOCK (reslock);
733 size = res_queue.size; 707 size = res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 708 X_UNLOCK (reslock);
735 709
736 if (size) 710 if (size)
737 return; 711 return;
738 712
739 maybe_start_thread (); 713 etp_maybe_start_thread ();
740 714
741 FD_ZERO(&rfd); 715 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 716 }
746} 717}
747 718
748static int poll_cb () 719static int
720poll_cb (void)
749{ 721{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 722 for (;;)
763 { 723 {
764 for (;;) 724 int res = eio_poll ();
725
726 if (res > 0)
727 croak (0);
728
729 if (!max_outstanding || max_outstanding > eio_nreqs ())
730 return res;
731
732 poll_wait ();
733 }
734}
735
736static void ecb_cold
737reinit (void)
738{
739 create_respipe ();
740
741 if (eio_init (want_poll, done_poll) < 0)
742 croak ("IO::AIO: unable to initialise eio library");
743}
744
745/*****************************************************************************/
746
747#if !_POSIX_MAPPED_FILES
748# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
749# define munmap(addr,length) EIO_ENOSYS ()
750#endif
751
752#if !_POSIX_MEMORY_PROTECTION
753# define mprotect(addr,len,prot) EIO_ENOSYS ()
754# define PROT_NONE 0
755# define PROT_WRITE 0
756# define MAP_PRIVATE 0
757# define MAP_SHARED 0
758# define MAP_FIXED 0
759#endif
760
761#define MMAP_MAGIC PERL_MAGIC_ext
762
763static int ecb_cold
764mmap_free (pTHX_ SV *sv, MAGIC *mg)
765{
766 int old_errno = errno;
767 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
768 errno = old_errno;
769
770 mg->mg_obj = 0; /* just in case */
771
772 SvREADONLY_off (sv);
773
774 if (SvPVX (sv) != mg->mg_ptr)
775 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
776
777 SvCUR_set (sv, 0);
778 SvPVX (sv) = 0;
779 SvOK_off (sv);
780
781 return 0;
782}
783
784static MGVTBL mmap_vtbl = {
785 0, 0, 0, 0, mmap_free
786};
787
788/*****************************************************************************/
789
790static SV *
791get_cb (SV *cb_sv)
792{
793 SvGETMAGIC (cb_sv);
794 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
795}
796
797static aio_req ecb_noinline
798dreq (SV *callback)
799{
800 SV *cb_cv;
801 aio_req req;
802 int req_pri = next_pri;
803 next_pri = EIO_PRI_DEFAULT;
804
805 cb_cv = get_cb (callback);
806
807 req = calloc (sizeof (*req), 1);
808 if (!req)
809 croak ("out of memory during eio_req allocation");
810
811 req->callback = SvREFCNT_inc (cb_cv);
812 req->pri = req_pri;
813
814 return req;
815}
816
817#define dREQ \
818 aio_req req = dreq (callback); \
819
820#define REQ_SEND \
821 PUTBACK; \
822 req_submit (req); \
823 SPAGAIN; \
824 \
825 if (GIMME_V != G_VOID) \
826 XPUSHs (req_sv (req, aio_req_stash));
827
828ecb_inline void
829req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
830{
831 if (expect_false (SvROK (path)))
832 {
833 SV *rv = SvRV (path);
834 SV *wdob;
835
836 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
765 { 837 {
766 maybe_start_thread (); 838 path = AvARRAY (rv)[1];
839 wdob = AvARRAY (rv)[0];
767 840
768 X_LOCK (reslock); 841 if (SvOK (wdob))
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 { 842 {
773 --npending; 843 *wd = SvAIO_WD (wdob);
774 844 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 } 845 }
796 else 846 else
797 { 847 *wd = EIO_INVALID_WD;
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0);
803 }
804
805 count++;
806 }
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 } 848 }
849 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
850 {
851 *wd = (aio_wd)(long)SvIVX (rv);
852 *wdsv = SvREFCNT_inc_NN (rv);
853 *ptr = ".";
854 return; /* path set to "." */
855 }
856 else
857 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
858 }
821 859
822 if (nreqs <= max_outstanding) 860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823 break; 883 break;
824 884
825 poll_wait (); 885 default:
826 886 req->type = type_path;
827 ++maxreqs; 887 req_set_path1 (req, fh_or_path);
888 break;
828 } 889 }
829
830 unblock_sig ();
831 return count;
832} 890}
833 891
834/*****************************************************************************/ 892XS(boot_IO__AIO) ecb_cold;
835/* work around various missing functions */
836 893
837#if !HAVE_PREADWRITE
838# define pread aio_pread
839# define pwrite aio_pwrite
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{
850 ssize_t res;
851 off_t ooffset;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861}
862
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
864{
865 ssize_t res;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876}
877#endif
878
879#ifndef HAVE_FUTIMES
880
881# define utimes(path,times) aio_utimes (path, times)
882# define futimes(fd,times) aio_futimes (fd, times)
883
884int aio_utimes (const char *filename, const struct timeval times[2])
885{
886 if (times)
887 {
888 struct utimbuf buf;
889
890 buf.actime = times[0].tv_sec;
891 buf.modtime = times[1].tv_sec;
892
893 return utime (filename, &buf);
894 }
895 else
896 return utime (filename, 0);
897}
898
899int aio_futimes (int fd, const struct timeval tv[2])
900{
901 errno = ENOSYS;
902 return -1;
903}
904
905#endif
906
907#if !HAVE_FDATASYNC
908# define fdatasync fsync
909#endif
910
911#if !HAVE_READAHEAD
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
913
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
915{
916 size_t todo = count;
917 dBUF;
918
919 while (todo > 0)
920 {
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922
923 pread (fd, aio_buf, len, offset);
924 offset += len;
925 todo -= len;
926 }
927
928 errno = 0;
929 return count;
930}
931
932#endif
933
934#if !HAVE_READDIR_R
935# define readdir_r aio_readdir_r
936
937static mutex_t readdirlock = X_MUTEX_INIT;
938
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
940{
941 X_DIRENT *e;
942 int errorno;
943
944 X_LOCK (readdirlock);
945
946 e = readdir (dirp);
947 errorno = errno;
948
949 if (e)
950 {
951 *res = ent;
952 strcpy (ent->d_name, e->d_name);
953 }
954 else
955 *res = 0;
956
957 X_UNLOCK (readdirlock);
958
959 errno = errorno;
960 return e ? 0 : -1;
961}
962#endif
963
964/* sendfile always needs emulation */
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
966{
967 ssize_t res;
968
969 if (!count)
970 return 0;
971
972#if HAVE_SENDFILE
973# if __linux
974 res = sendfile (ofd, ifd, &offset, count);
975
976# elif __freebsd
977 /*
978 * Of course, the freebsd sendfile is a dire hack with no thoughts
979 * wasted on making it similar to other I/O functions.
980 */
981 {
982 off_t sbytes;
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984
985 if (res < 0 && sbytes)
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
987 res = sbytes;
988 }
989
990# elif __hpux
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014
1015 if (res < 0
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1017#if __solaris
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1019#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025
1026 res = 0;
1027
1028 while (count)
1029 {
1030 ssize_t cnt;
1031
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1033
1034 if (cnt <= 0)
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039
1040 cnt = write (ofd, aio_buf, cnt);
1041
1042 if (cnt <= 0)
1043 {
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047
1048 offset += cnt;
1049 res += cnt;
1050 count -= cnt;
1051 }
1052 }
1053
1054 return res;
1055}
1056
1057/* read a full directory */
1058static void scandir_ (aio_req req, worker *self)
1059{
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116}
1117
1118/*****************************************************************************/
1119
1120X_THREAD_PROC (aio_proc)
1121{
1122 {//D
1123 aio_req req;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355}
1356
1357#define dREQ \
1358 aio_req req; \
1359 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \
1361 \
1362 if (SvOK (callback) && !SvROK (callback)) \
1363 croak ("callback must be undef or of reference type"); \
1364 \
1365 Newz (0, req, 1, aio_cb); \
1366 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \
1368 \
1369 req->callback = newSVsv (callback); \
1370 req->pri = req_pri
1371
1372#define REQ_SEND \
1373 req_send (req); \
1374 \
1375 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1377
1378MODULE = IO::AIO PACKAGE = IO::AIO 894MODULE = IO::AIO PACKAGE = IO::AIO
1379 895
1380PROTOTYPES: ENABLE 896PROTOTYPES: ENABLE
1381 897
1382BOOT: 898BOOT:
1383{ 899{
900 static const struct {
901 const char *name;
902 IV iv;
903 } *civ, const_iv[] = {
904# define const_niv(name, value) { # name, (IV) value },
905# define const_iv(name) { # name, (IV) name },
906# define const_eio(name) { # name, (IV) EIO_ ## name },
907
908 /* you have to re-run ./gendef0 after adding/Removing any constants here */
909
910 const_iv (ENOSYS)
911 const_iv (EXDEV)
912 const_iv (EBADR)
913
914 const_iv (O_RDONLY)
915 const_iv (O_WRONLY)
916 const_iv (O_RDWR)
917 const_iv (O_CREAT)
918 const_iv (O_TRUNC)
919 const_iv (O_EXCL)
920 const_iv (O_APPEND)
921
922 const_iv (O_ASYNC)
923 const_iv (O_DIRECT)
924 const_iv (O_NOATIME)
925
926 const_iv (O_CLOEXEC)
927 const_iv (O_NOCTTY)
928 const_iv (O_NOFOLLOW)
929 const_iv (O_NONBLOCK)
930 const_iv (O_EXEC)
931 const_iv (O_SEARCH)
932 const_iv (O_DIRECTORY)
933 const_iv (O_DSYNC)
934 const_iv (O_RSYNC)
935 const_iv (O_SYNC)
936 const_iv (O_TTY_INIT)
937
938 const_iv (S_IFIFO)
939 const_iv (S_IFCHR)
940 const_iv (S_IFBLK)
941 const_iv (S_IFLNK)
942 const_iv (S_IFREG)
943 const_iv (S_IFDIR)
944 const_iv (S_IFWHT)
945 const_iv (S_IFSOCK)
946 const_iv (S_IFMT)
947
948 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
949 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
950 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
951 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
952 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
953 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
954
955 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
956 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
957 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
958 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
959 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
960
961 const_iv (ST_RDONLY)
962 const_iv (ST_NOSUID)
963 const_iv (ST_NODEV)
964 const_iv (ST_NOEXEC)
965 const_iv (ST_SYNCHRONOUS)
966 const_iv (ST_MANDLOCK)
967 const_iv (ST_WRITE)
968 const_iv (ST_APPEND)
969 const_iv (ST_IMMUTABLE)
970 const_iv (ST_NOATIME)
971 const_iv (ST_NODIRATIME)
972 const_iv (ST_RELATIME)
973
974 const_iv (PROT_NONE)
975 const_iv (PROT_EXEC)
976 const_iv (PROT_READ)
977 const_iv (PROT_WRITE)
978
979 /*const_iv (MAP_FIXED)*/
980 const_iv (MAP_PRIVATE)
981 const_iv (MAP_SHARED)
982 const_iv (MAP_ANONYMOUS)
983
984 /* linuxish */
985 const_iv (MAP_HUGETLB)
986 const_iv (MAP_LOCKED)
987 const_iv (MAP_NORESERVE)
988 const_iv (MAP_POPULATE)
989 const_iv (MAP_NONBLOCK)
990
991 const_iv (FIEMAP_FLAG_SYNC)
992 const_iv (FIEMAP_FLAG_XATTR)
993 const_iv (FIEMAP_FLAGS_COMPAT)
994 const_iv (FIEMAP_EXTENT_LAST)
995 const_iv (FIEMAP_EXTENT_UNKNOWN)
996 const_iv (FIEMAP_EXTENT_DELALLOC)
997 const_iv (FIEMAP_EXTENT_ENCODED)
998 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
999 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1000 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1001 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1002 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1003 const_iv (FIEMAP_EXTENT_MERGED)
1004 const_iv (FIEMAP_EXTENT_SHARED)
1005
1006 const_iv (SPLICE_F_MOVE)
1007 const_iv (SPLICE_F_NONBLOCK)
1008 const_iv (SPLICE_F_MORE)
1009 const_iv (SPLICE_F_GIFT)
1010
1011 const_iv (SEEK_DATA)
1012 const_iv (SEEK_HOLE)
1013
1014 /* libeio constants */
1015 const_eio (SEEK_SET)
1016 const_eio (SEEK_CUR)
1017 const_eio (SEEK_END)
1018
1019 const_eio (MCL_FUTURE)
1020 const_eio (MCL_CURRENT)
1021
1022 const_eio (MS_ASYNC)
1023 const_eio (MS_INVALIDATE)
1024 const_eio (MS_SYNC)
1025
1026 const_eio (MT_MODIFY)
1027
1028 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1029 const_eio (SYNC_FILE_RANGE_WRITE)
1030 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1031
1032 const_eio (FALLOC_FL_KEEP_SIZE)
1033 const_eio (FALLOC_FL_PUNCH_HOLE)
1034
1035 const_eio (READDIR_DENTS)
1036 const_eio (READDIR_DIRS_FIRST)
1037 const_eio (READDIR_STAT_ORDER)
1038 const_eio (READDIR_FOUND_UNKNOWN)
1039
1040 const_eio (DT_UNKNOWN)
1041 const_eio (DT_FIFO)
1042 const_eio (DT_CHR)
1043 const_eio (DT_DIR)
1044 const_eio (DT_BLK)
1045 const_eio (DT_REG)
1046 const_eio (DT_LNK)
1047 const_eio (DT_SOCK)
1048 const_eio (DT_WHT)
1049 };
1050
1384 HV *stash = gv_stashpv ("IO::AIO", 1); 1051 aio_stash = gv_stashpv ("IO::AIO" , 1);
1052 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1053 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1054 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1385 1055
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1056 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1057 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402 1058
1403 if (!create_pipe (respipe)) 1059 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1404 croak ("cannot set result pipe to nonblocking mode");
1405 1060
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 1061 reinit ();
1407} 1062}
1408 1063
1409void 1064void
1065reinit ()
1066 PROTOTYPE:
1067
1068void
1410max_poll_reqs (int nreqs) 1069max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1070 PROTOTYPE: $
1412 CODE: 1071 CODE:
1413 max_poll_reqs = nreqs; 1072 eio_set_max_poll_reqs (nreqs);
1414 1073
1415void 1074void
1416max_poll_time (double nseconds) 1075max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1076 PROTOTYPE: $
1418 CODE: 1077 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1078 eio_set_max_poll_time (nseconds);
1420 1079
1421void 1080void
1422min_parallel (int nthreads) 1081min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1082 PROTOTYPE: $
1432 CODE: 1083 CODE:
1433 set_max_idle (nthreads); 1084 eio_set_min_parallel (nthreads);
1434 1085
1435int 1086void
1436max_outstanding (int maxreqs) 1087max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1088 PROTOTYPE: $
1438 CODE: 1089 CODE:
1439 RETVAL = max_outstanding; 1090 eio_set_max_parallel (nthreads);
1091
1092void
1093max_idle (unsigned int nthreads)
1094 PROTOTYPE: $
1095 CODE:
1096 eio_set_max_idle (nthreads);
1097
1098void
1099idle_timeout (unsigned int seconds)
1100 PROTOTYPE: $
1101 CODE:
1102 eio_set_idle_timeout (seconds);
1103
1104void
1105max_outstanding (unsigned int maxreqs)
1106 PROTOTYPE: $
1107 CODE:
1440 max_outstanding = maxreqs; 1108 max_outstanding = maxreqs;
1441 OUTPUT: 1109
1442 RETVAL 1110void
1111aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1112 PPCODE:
1113{
1114 dREQ;
1115
1116 req->type = EIO_WD_OPEN;
1117 req_set_path1 (req, pathname);
1118
1119 REQ_SEND;
1120}
1443 1121
1444void 1122void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1123aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1124 PPCODE:
1448{ 1125{
1449 dREQ; 1126 dREQ;
1450 1127
1451 req->type = REQ_OPEN; 1128 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1129 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1130 req->int1 = flags;
1455 req->mode = mode; 1131 req->int2 = mode;
1456 1132
1457 REQ_SEND; 1133 REQ_SEND;
1458} 1134}
1459 1135
1460void 1136void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1137aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1138 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1139 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1140 aio_fdatasync = EIO_FDATASYNC
1141 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1142 PPCODE:
1468{ 1143{
1144 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1145 dREQ;
1470 1146
1471 req->type = ix; 1147 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1148 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1149 req->int1 = fd;
1474 1150
1475 REQ_SEND (req); 1151 REQ_SEND;
1152}
1153
1154void
1155aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1156 PPCODE:
1157{
1158 int fd = s_fileno_croak (fh, 0);
1159 dREQ;
1160
1161 req->type = EIO_SYNC_FILE_RANGE;
1162 req->sv1 = newSVsv (fh);
1163 req->int1 = fd;
1164 req->offs = offset;
1165 req->size = nbytes;
1166 req->int2 = flags;
1167
1168 REQ_SEND;
1169}
1170
1171void
1172aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1173 PPCODE:
1174{
1175 int fd = s_fileno_croak (fh, 0);
1176 dREQ;
1177
1178 req->type = EIO_FALLOCATE;
1179 req->sv1 = newSVsv (fh);
1180 req->int1 = fd;
1181 req->int2 = mode;
1182 req->offs = offset;
1183 req->size = len;
1184
1185 REQ_SEND;
1186}
1187
1188void
1189aio_close (SV *fh, SV *callback=&PL_sv_undef)
1190 PPCODE:
1191{
1192 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1193 int fd = s_fileno_croak (fh, 0);
1194 dREQ;
1195
1196 if (expect_false (close_fd < 0))
1197 {
1198 int pipefd [2];
1199
1200 if (
1201#ifdef _WIN32
1202 _pipe (pipefd, 1, _O_BINARY) < 0
1203#else
1204 pipe (pipefd) < 0
1205 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1206#endif
1207 || close (pipefd [1]) < 0
1208 )
1209 abort (); /*D*/
1210
1211 close_fd = pipefd [0];
1212 }
1213
1214 req->type = EIO_DUP2;
1215 req->int1 = close_fd;
1216 req->sv2 = newSVsv (fh);
1217 req->int2 = fd;
1218
1219 REQ_SEND;
1220}
1221
1222void
1223aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1224 PPCODE:
1225{
1226 int fd = s_fileno_croak (fh, 0);
1227 dREQ;
1228
1229 req->type = EIO_SEEK;
1230 req->sv1 = newSVsv (fh);
1231 req->int1 = fd;
1232 req->offs = SvVAL64 (offset);
1233 req->int2 = whence;
1234
1235 REQ_SEND;
1476} 1236}
1477 1237
1478void 1238void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1239aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1480 ALIAS: 1240 ALIAS:
1481 aio_read = REQ_READ 1241 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1242 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1243 PPCODE:
1485{ 1244{
1486 STRLEN svlen; 1245 STRLEN svlen;
1246 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1247 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1248 UV len = SvUV (length);
1489 1249
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1250 if (dataoffset < 0)
1494 dataoffset += svlen; 1251 dataoffset += svlen;
1495 1252
1496 if (dataoffset < 0 || dataoffset > svlen) 1253 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1254 croak ("dataoffset outside of data scalar");
1498 1255
1499 if (ix == REQ_WRITE) 1256 if (ix == EIO_WRITE)
1500 { 1257 {
1501 /* write: check length and adjust. */ 1258 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1259 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1260 len = svlen - dataoffset;
1504 } 1261 }
1505 else 1262 else
1506 { 1263 {
1507 /* read: grow scalar as necessary */ 1264 /* read: check type and grow scalar as necessary */
1265 SvUPGRADE (data, SVt_PV);
1266 if (SvLEN (data) >= SvCUR (data))
1508 svptr = SvGROW (data, len + dataoffset + 1); 1267 svptr = SvGROW (data, len + dataoffset + 1);
1268 else if (SvCUR (data) < len + dataoffset)
1269 croak ("length + dataoffset outside of scalar, and cannot grow");
1509 } 1270 }
1510
1511 if (len < 0)
1512 croak ("length must not be negative");
1513 1271
1514 { 1272 {
1515 dREQ; 1273 dREQ;
1516 1274
1517 req->type = ix; 1275 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1276 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1277 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1278 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1279 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1280 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1281 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1282 req->stroffset = dataoffset;
1526 1283
1527 if (!SvREADONLY (data)) 1284 if (!SvREADONLY (data))
1528 { 1285 {
1529 SvREADONLY_on (data); 1286 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1290 REQ_SEND;
1534 } 1291 }
1535} 1292}
1536 1293
1537void 1294void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1295aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $$;$ 1296 ALIAS:
1297 aio_readlink = EIO_READLINK
1298 aio_realpath = EIO_REALPATH
1540 PPCODE: 1299 PPCODE:
1541{ 1300{
1542 SV *data;
1543 dREQ; 1301 dREQ;
1544 1302
1545 data = newSV (NAME_MAX);
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK; 1303 req->type = ix;
1549 req->sv1 = newSVsv (path); 1304 req_set_path1 (req, pathname);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553 1305
1554 REQ_SEND; 1306 REQ_SEND;
1555} 1307}
1556 1308
1557void 1309void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1310aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE: 1311 PPCODE:
1561{ 1312{
1313 int ifd = s_fileno_croak (in_fh , 0);
1314 int ofd = s_fileno_croak (out_fh, 1);
1562 dREQ; 1315 dREQ;
1563 1316
1564 req->type = REQ_SENDFILE; 1317 req->type = EIO_SENDFILE;
1565 req->sv1 = newSVsv (out_fh); 1318 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1319 req->int1 = ofd;
1567 req->sv2 = newSVsv (in_fh); 1320 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1321 req->int2 = ifd;
1569 req->offs = SvVAL64 (in_offset); 1322 req->offs = in_offset;
1570 req->size = length; 1323 req->size = length;
1571 1324
1572 REQ_SEND; 1325 REQ_SEND;
1573} 1326}
1574 1327
1575void 1328void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1329aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE: 1330 PPCODE:
1579{ 1331{
1332 int fd = s_fileno_croak (fh, 0);
1580 dREQ; 1333 dREQ;
1581 1334
1582 req->type = REQ_READAHEAD; 1335 req->type = EIO_READAHEAD;
1583 req->sv1 = newSVsv (fh); 1336 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1337 req->int1 = fd;
1585 req->offs = SvVAL64 (offset); 1338 req->offs = offset;
1586 req->size = length; 1339 req->size = length;
1587 1340
1588 REQ_SEND; 1341 REQ_SEND;
1589} 1342}
1590 1343
1591void 1344void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1345aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS: 1346 ALIAS:
1594 aio_stat = REQ_STAT 1347 aio_stat = EIO_STAT
1595 aio_lstat = REQ_LSTAT 1348 aio_lstat = EIO_LSTAT
1349 aio_statvfs = EIO_STATVFS
1596 PPCODE: 1350 PPCODE:
1597{ 1351{
1598 dREQ; 1352 dREQ;
1599 1353
1600 req->ptr2 = malloc (sizeof (Stat_t)); 1354 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1601 if (!req->ptr2)
1602 {
1603 req_destroy (req);
1604 croak ("out of memory during aio_stat statdata allocation");
1605 }
1606
1607 req->flags |= FLAG_PTR2_FREE;
1608 req->sv1 = newSVsv (fh_or_path);
1609
1610 if (SvPOK (fh_or_path))
1611 {
1612 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 }
1615 else
1616 {
1617 req->type = REQ_FSTAT;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1619 }
1620 1355
1621 REQ_SEND; 1356 REQ_SEND;
1622} 1357}
1358
1359UV
1360major (UV dev)
1361 ALIAS:
1362 minor = 1
1363 CODE:
1364 RETVAL = ix ? major (dev) : minor (dev);
1365 OUTPUT:
1366 RETVAL
1367
1368UV
1369makedev (UV maj, UV min)
1370 CODE:
1371 RETVAL = makedev (maj, min);
1372 OUTPUT:
1373 RETVAL
1623 1374
1624void 1375void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1376aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1626 PPCODE: 1377 PPCODE:
1627{ 1378{
1628 dREQ; 1379 dREQ;
1629 1380
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1381 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1382 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1383 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1633
1634 if (SvPOK (fh_or_path))
1635 {
1636 req->type = REQ_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 }
1639 else
1640 {
1641 req->type = REQ_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 }
1644 1384
1645 REQ_SEND; 1385 REQ_SEND;
1646} 1386}
1647 1387
1648void 1388void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1389aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1650 PPCODE: 1390 PPCODE:
1651{ 1391{
1652 dREQ; 1392 dREQ;
1653 1393
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1394 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1395 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1657 if (SvPOK (fh_or_path))
1658 {
1659 req->type = REQ_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 }
1662 else
1663 {
1664 req->type = REQ_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 }
1667 1396
1668 REQ_SEND; 1397 REQ_SEND;
1669} 1398}
1670 1399
1671void 1400void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1401aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1673 PPCODE: 1402 PPCODE:
1674{ 1403{
1675 dREQ; 1404 dREQ;
1676 1405
1677 req->mode = mode; 1406 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1407 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1679
1680 if (SvPOK (fh_or_path))
1681 {
1682 req->type = REQ_CHMOD;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 }
1685 else
1686 {
1687 req->type = REQ_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 }
1690 1408
1691 REQ_SEND; 1409 REQ_SEND;
1692} 1410}
1693 1411
1694void 1412void
… …
1697{ 1415{
1698 dREQ; 1416 dREQ;
1699 1417
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1418 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1419 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1420 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703 1421
1704 if (SvPOK (fh_or_path)) 1422 REQ_SEND;
1705 { 1423}
1706 req->type = REQ_CHOWN; 1424
1707 req->ptr1 = SvPVbyte_nolen (req->sv1); 1425void
1708 } 1426aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1709 else 1427 PPCODE:
1710 { 1428{
1711 req->type = REQ_FCHOWN; 1429 dREQ;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1430
1713 } 1431 req->type = EIO_READDIR;
1432 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1433
1434 if (flags & EIO_READDIR_DENTS)
1435 req->int1 |= EIO_READDIR_CUSTOM2;
1436
1437 req_set_path1 (req, pathname);
1438
1439 REQ_SEND;
1440}
1441
1442void
1443aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1444 PPCODE:
1445{
1446 dREQ;
1447
1448 req->type = EIO_MKDIR;
1449 req->int2 = mode;
1450 req_set_path1 (req, pathname);
1714 1451
1715 REQ_SEND; 1452 REQ_SEND;
1716} 1453}
1717 1454
1718void 1455void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1456aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1720 ALIAS: 1457 ALIAS:
1721 aio_unlink = REQ_UNLINK 1458 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1459 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1460 aio_readdir = EIO_READDIR
1724 PPCODE: 1461 PPCODE:
1725{ 1462{
1726 dREQ; 1463 dREQ;
1727 1464
1728 req->type = ix; 1465 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 1466 req_set_path1 (req, pathname);
1730 req->ptr1 = SvPVbyte_nolen (req->sv1);
1731
1732 REQ_SEND;
1733}
1734
1735void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = REQ_MKDIR;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode;
1745 1467
1746 REQ_SEND; 1468 REQ_SEND;
1747} 1469}
1748 1470
1749void 1471void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1472aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS: 1473 ALIAS:
1752 aio_link = REQ_LINK 1474 aio_link = EIO_LINK
1753 aio_symlink = REQ_SYMLINK 1475 aio_symlink = EIO_SYMLINK
1754 aio_rename = REQ_RENAME 1476 aio_rename = EIO_RENAME
1755 PPCODE: 1477 PPCODE:
1756{ 1478{
1479 eio_wd wd2 = 0;
1757 dREQ; 1480 dREQ;
1758 1481
1759 req->type = ix; 1482 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 1483 req_set_path1 (req, oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 1484 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1762 req->sv1 = newSVsv (newpath); 1485 req->int3 = (long)wd2;
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1486
1765 REQ_SEND; 1487 REQ_SEND;
1766} 1488}
1767 1489
1768void 1490void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1491aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1770 PPCODE: 1492 PPCODE:
1771{ 1493{
1772 dREQ; 1494 dREQ;
1773 1495
1774 req->type = REQ_MKNOD; 1496 req->type = EIO_MKNOD;
1775 req->sv1 = newSVsv (pathname);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1);
1777 req->mode = (mode_t)mode; 1497 req->int2 = (mode_t)mode;
1778 req->offs = dev; 1498 req->offs = dev;
1499 req_set_path1 (req, pathname);
1779 1500
1780 REQ_SEND; 1501 REQ_SEND;
1781} 1502}
1782 1503
1783void 1504void
1505aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1506 ALIAS:
1507 aio_mtouch = EIO_MTOUCH
1508 aio_msync = EIO_MSYNC
1509 PPCODE:
1510{
1511 STRLEN svlen;
1512 char *svptr = SvPVbyte (data, svlen);
1513 UV len = SvUV (length);
1514
1515 if (offset < 0)
1516 offset += svlen;
1517
1518 if (offset < 0 || offset > svlen)
1519 croak ("offset outside of scalar");
1520
1521 if (!SvOK (length) || len + offset > svlen)
1522 len = svlen - offset;
1523
1524 {
1525 dREQ;
1526
1527 req->type = ix;
1528 req->sv2 = SvREFCNT_inc (data);
1529 req->ptr2 = (char *)svptr + offset;
1530 req->size = len;
1531 req->int1 = flags;
1532
1533 REQ_SEND;
1534 }
1535}
1536
1537void
1538aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1539 PPCODE:
1540{
1541 STRLEN svlen;
1542 char *svptr = SvPVbyte (data, svlen);
1543 UV len = SvUV (length);
1544
1545 if (offset < 0)
1546 offset += svlen;
1547
1548 if (offset < 0 || offset > svlen)
1549 croak ("offset outside of scalar");
1550
1551 if (!SvOK (length) || len + offset > svlen)
1552 len = svlen - offset;
1553
1554 {
1555 dREQ;
1556
1557 req->type = EIO_MLOCK;
1558 req->sv2 = SvREFCNT_inc (data);
1559 req->ptr2 = (char *)svptr + offset;
1560 req->size = len;
1561
1562 REQ_SEND;
1563 }
1564}
1565
1566void
1567aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1568 PPCODE:
1569{
1570 dREQ;
1571
1572 req->type = EIO_MLOCKALL;
1573 req->int1 = flags;
1574
1575 REQ_SEND;
1576}
1577
1578void
1579aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1580 PPCODE:
1581{
1582 int fd = s_fileno_croak (fh, 0);
1583 dREQ;
1584
1585 req->type = EIO_CUSTOM;
1586 req->sv1 = newSVsv (fh);
1587 req->int1 = fd;
1588
1589 req->feed = fiemap;
1590#if HAVE_FIEMAP
1591 /* keep our fingers crossed that the next two types are 64 bit */
1592 req->offs = start;
1593 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1594 req->int2 = flags;
1595 req->int3 = SvOK (count) ? SvIV (count) : -1;
1596#endif
1597
1598 REQ_SEND;
1599}
1600
1601void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1602aio_busy (double delay, SV *callback=&PL_sv_undef)
1785 PPCODE: 1603 PPCODE:
1786{ 1604{
1787 dREQ; 1605 dREQ;
1788 1606
1789 req->type = REQ_BUSY; 1607 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 1608 req->nv1 = delay < 0. ? 0. : delay;
1791 1609
1792 REQ_SEND; 1610 REQ_SEND;
1793} 1611}
1794 1612
1795void 1613void
1796aio_group (SV *callback=&PL_sv_undef) 1614aio_group (SV *callback=&PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 1615 PPCODE:
1799{ 1616{
1800 dREQ; 1617 dREQ;
1801 1618
1802 req->type = REQ_GROUP; 1619 req->type = EIO_GROUP;
1803 1620
1804 req_send (req); 1621 req_submit (req);
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1622 XPUSHs (req_sv (req, aio_grp_stash));
1806} 1623}
1807 1624
1808void 1625void
1809aio_nop (SV *callback=&PL_sv_undef) 1626aio_nop (SV *callback=&PL_sv_undef)
1627 ALIAS:
1628 aio_nop = EIO_NOP
1629 aio_sync = EIO_SYNC
1810 PPCODE: 1630 PPCODE:
1811{ 1631{
1812 dREQ; 1632 dREQ;
1813 1633
1814 req->type = REQ_NOP; 1634 req->type = ix;
1815 1635
1816 REQ_SEND; 1636 REQ_SEND;
1817} 1637}
1818 1638
1819int 1639int
1820aioreq_pri (int pri = 0) 1640aioreq_pri (int pri = 0)
1821 PROTOTYPE: ;$
1822 CODE: 1641 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 1642 RETVAL = next_pri;
1824 if (items > 0) 1643 if (items > 0)
1825 { 1644 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 1645 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 1646 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 1647 next_pri = pri;
1829 } 1648 }
1830 OUTPUT: 1649 OUTPUT:
1831 RETVAL 1650 RETVAL
1832 1651
1833void 1652void
1834aioreq_nice (int nice = 0) 1653aioreq_nice (int nice = 0)
1835 CODE: 1654 CODE:
1836 nice = next_pri - nice; 1655 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 1656 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 1657 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 1658 next_pri = nice;
1840 1659
1841void 1660void
1842flush () 1661flush ()
1843 PROTOTYPE:
1844 CODE: 1662 CODE:
1845 while (nreqs) 1663 while (eio_nreqs ())
1846 { 1664 {
1847 poll_wait (); 1665 poll_wait ();
1848 poll_cb (); 1666 poll_cb ();
1849 } 1667 }
1850 1668
1851int 1669int
1852poll() 1670poll ()
1853 PROTOTYPE:
1854 CODE: 1671 CODE:
1855 poll_wait (); 1672 poll_wait ();
1856 RETVAL = poll_cb (); 1673 RETVAL = poll_cb ();
1857 OUTPUT: 1674 OUTPUT:
1858 RETVAL 1675 RETVAL
1859 1676
1860int 1677int
1861poll_fileno() 1678poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 1679 CODE:
1864 RETVAL = respipe [0]; 1680 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 1681 OUTPUT:
1866 RETVAL 1682 RETVAL
1867 1683
1868int 1684int
1869poll_cb(...) 1685poll_cb (...)
1870 PROTOTYPE: 1686 PROTOTYPE:
1871 CODE: 1687 CODE:
1872 RETVAL = poll_cb (); 1688 RETVAL = poll_cb ();
1873 OUTPUT: 1689 OUTPUT:
1874 RETVAL 1690 RETVAL
1875 1691
1876void 1692void
1877poll_wait() 1693poll_wait ()
1878 PROTOTYPE:
1879 CODE: 1694 CODE:
1880 poll_wait (); 1695 poll_wait ();
1881 1696
1882void
1883setsig (int signum = SIGIO)
1884 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE:
1903{
1904 int count;
1905
1906 block_sig ();
1907 PUSHMARK (SP);
1908 PUTBACK;
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1910 SPAGAIN;
1911 unblock_sig ();
1912
1913 if (SvTRUE (ERRSV))
1914 croak (0);
1915
1916 XSRETURN (count);
1917}
1918
1919int 1697int
1920nreqs() 1698nreqs ()
1921 PROTOTYPE:
1922 CODE: 1699 CODE:
1923 RETVAL = nreqs; 1700 RETVAL = eio_nreqs ();
1924 OUTPUT: 1701 OUTPUT:
1925 RETVAL 1702 RETVAL
1926 1703
1927int 1704int
1928nready() 1705nready ()
1929 PROTOTYPE:
1930 CODE: 1706 CODE:
1931 RETVAL = get_nready (); 1707 RETVAL = eio_nready ();
1932 OUTPUT: 1708 OUTPUT:
1933 RETVAL 1709 RETVAL
1934 1710
1935int 1711int
1936npending() 1712npending ()
1937 PROTOTYPE:
1938 CODE: 1713 CODE:
1939 RETVAL = get_npending (); 1714 RETVAL = eio_npending ();
1940 OUTPUT: 1715 OUTPUT:
1941 RETVAL 1716 RETVAL
1942 1717
1943int 1718int
1944nthreads() 1719nthreads ()
1945 PROTOTYPE:
1946 CODE: 1720 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1721 RETVAL = eio_nthreads ();
1948 RETVAL = started;
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1950 OUTPUT: 1722 OUTPUT:
1951 RETVAL 1723 RETVAL
1952 1724
1725int
1726fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1727 CODE:
1728 RETVAL = posix_fadvise (fh, offset, length, advice);
1729 OUTPUT:
1730 RETVAL
1731
1732IV
1733sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1734 CODE:
1735 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1736 OUTPUT:
1737 RETVAL
1738
1739void
1740mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1741 PPCODE:
1742 sv_unmagic (scalar, MMAP_MAGIC);
1743{
1744 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1745 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1746 if (addr == (void *)-1)
1747 XSRETURN_NO;
1748
1749 sv_force_normal (scalar);
1750
1751 /* we store the length in mg_obj, as namlen is I32 :/ */
1752 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1753 ->mg_obj = (SV *)length;
1754
1755 SvUPGRADE (scalar, SVt_PV); /* nop... */
1756
1757 if (!(prot & PROT_WRITE))
1758 SvREADONLY_on (scalar);
1759
1760 if (SvLEN (scalar))
1761 Safefree (SvPVX (scalar));
1762
1763 SvPVX (scalar) = (char *)addr;
1764 SvCUR_set (scalar, length);
1765 SvLEN_set (scalar, 0);
1766 SvPOK_only (scalar);
1767
1768 XSRETURN_YES;
1769}
1770
1771void
1772munmap (SV *scalar)
1773 CODE:
1774 sv_unmagic (scalar, MMAP_MAGIC);
1775
1776int
1777madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1778 ALIAS:
1779 mprotect = 1
1780 CODE:
1781{
1782 STRLEN svlen;
1783 void *addr = SvPVbyte (scalar, svlen);
1784 size_t len = SvUV (length);
1785
1786 if (offset < 0)
1787 offset += svlen;
1788
1789 if (offset < 0 || offset > svlen)
1790 croak ("offset outside of scalar");
1791
1792 if (!SvOK (length) || len + offset > svlen)
1793 len = svlen - offset;
1794
1795 addr = (void *)(((intptr_t)addr) + offset);
1796 eio_page_align (&addr, &len);
1797
1798 switch (ix)
1799 {
1800 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1801 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1802 }
1803}
1804 OUTPUT:
1805 RETVAL
1806
1807int
1808munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1809 CODE:
1810{
1811 STRLEN svlen;
1812 void *addr = SvPVbyte (scalar, svlen);
1813 size_t len = SvUV (length);
1814
1815 if (offset < 0)
1816 offset += svlen;
1817
1818 if (offset < 0 || offset > svlen)
1819 croak ("offset outside of scalar");
1820
1821 if (!SvOK (length) || len + offset > svlen)
1822 len = svlen - offset;
1823
1824 addr = (void *)(((intptr_t)addr) + offset);
1825 eio_page_align (&addr, &len);
1826#if _POSIX_MEMLOCK_RANGE
1827 RETVAL = munlock (addr, len);
1828#else
1829 RETVAL = EIO_ENOSYS ();
1830#endif
1831}
1832 OUTPUT:
1833 RETVAL
1834
1835int
1836munlockall ()
1837 CODE:
1838#if _POSIX_MEMLOCK
1839 munlockall ();
1840#else
1841 RETVAL = EIO_ENOSYS ();
1842#endif
1843 OUTPUT:
1844 RETVAL
1845
1846int
1847splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1848 CODE:
1849{
1850#if HAVE_LINUX_SPLICE
1851 loff_t off_in_, off_out_;
1852 RETVAL = splice (
1853 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1854 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1855 length, flags
1856 );
1857#else
1858 RETVAL = EIO_ENOSYS ();
1859#endif
1860}
1861 OUTPUT:
1862 RETVAL
1863
1864int
1865tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1866 CODE:
1867#if HAVE_LINUX_SPLICE
1868 RETVAL = tee (rfh, wfh, length, flags);
1869#else
1870 RETVAL = EIO_ENOSYS ();
1871#endif
1872 OUTPUT:
1873 RETVAL
1874
1875void _on_next_submit (SV *cb)
1876 CODE:
1877 SvREFCNT_dec (on_next_submit);
1878 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1879
1953PROTOTYPES: DISABLE 1880PROTOTYPES: DISABLE
1881
1882MODULE = IO::AIO PACKAGE = IO::AIO::WD
1883
1884BOOT:
1885{
1886 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1887 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1888}
1889
1890void
1891DESTROY (SV *self)
1892 CODE:
1893{
1894 aio_wd wd = SvAIO_WD (self);
1895#if HAVE_AT
1896 {
1897 SV *callback = &PL_sv_undef;
1898 dREQ; /* clobbers next_pri :/ */
1899 next_pri = req->pri; /* restore next_pri */
1900 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1901 req->type = EIO_WD_CLOSE;
1902 req->wd = wd;
1903 REQ_SEND;
1904 }
1905#else
1906 eio_wd_close_sync (wd);
1907#endif
1908}
1954 1909
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1910MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 1911
1957void 1912void
1958cancel (aio_req_ornot req) 1913cancel (aio_req_ornot req)
1959 CODE: 1914 CODE:
1960 req_cancel (req); 1915 eio_cancel (req);
1961 1916
1962void 1917void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1918cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1964 CODE: 1919 PPCODE:
1920{
1921 if (GIMME_V != G_VOID)
1922 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1923
1924 if (items > 1)
1925 {
1926 SV *cb_cv =get_cb (callback);
1927
1965 SvREFCNT_dec (req->callback); 1928 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 1929 req->callback = SvREFCNT_inc (cb_cv);
1930 }
1931}
1967 1932
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1933MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 1934
1970void 1935void
1971add (aio_req grp, ...) 1936add (aio_req grp, ...)
1972 PPCODE: 1937 PPCODE:
1973{ 1938{
1974 int i; 1939 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 1940
1980 if (grp->int1 == 2) 1941 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1942 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 1943
1983 for (i = 1; i < items; ++i ) 1944 for (i = 1; i < items; ++i )
1984 { 1945 {
1946 aio_req req;
1947
1985 if (GIMME_V != G_VOID) 1948 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1949 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 1950
1988 req = SvAIO_REQ (ST (i)); 1951 req = SvAIO_REQ (ST (i));
1989 1952
1990 if (req) 1953 if (req)
1991 { 1954 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 1955 }
2004} 1956}
2005 1957
2006void 1958void
2007cancel_subs (aio_req_ornot req) 1959cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 1968 AV *av;
2017 1969
2018 grp->errorno = errno; 1970 grp->errorno = errno;
2019 1971
2020 av = newAV (); 1972 av = newAV ();
1973 av_extend (av, items - 1);
2021 1974
2022 for (i = 1; i < items; ++i ) 1975 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 1976 av_push (av, newSVsv (ST (i)));
2024 1977
2025 SvREFCNT_dec (grp->sv1); 1978 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 1985 grp->errorno = errorno;
2033 1986
2034void 1987void
2035limit (aio_req grp, int limit) 1988limit (aio_req grp, int limit)
2036 CODE: 1989 CODE:
2037 grp->int2 = limit; 1990 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 1991
2040void 1992void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 1993feed (aio_req grp, SV *callback=&PL_sv_undef)
2042 CODE: 1994 CODE:
2043{ 1995{
2044 SvREFCNT_dec (grp->sv2); 1996 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 1997 grp->sv2 = newSVsv (callback);
1998 grp->feed = aio_grp_feed;
2046 1999
2047 if (grp->int2 <= 0) 2000 if (grp->int2 <= 0)
2048 grp->int2 = 2; 2001 grp->int2 = 2;
2049 2002
2050 aio_grp_feed (grp); 2003 eio_grp_limit (grp, grp->int2);
2051} 2004}
2052 2005

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