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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 1.230 by root, Tue Jun 3 01:30:33 2014 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. on't complain if this fails for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
36
37/* perl namespace pollution */
38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
18#ifdef _WIN32 46#ifdef _WIN32
19 47
20# define SIGIO 0 48 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 49
22#undef malloc 50 #undef malloc
23#undef free 51 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 52 #undef open
27# undef read 53 #undef read
28# undef write 54 #undef write
55 #undef send
56 #undef recv
29# undef stat 57 #undef stat
58 #undef lstat
30# undef fstat 59 #undef fstat
31# define lstat stat
32# undef truncate 60 #undef truncate
33# undef ftruncate 61 #undef ftruncate
34# undef open 62 #undef open
63 #undef link
35# undef close 64 #undef close
36# undef unlink 65 #undef unlink
66 #undef mkdir
37# undef rmdir 67 #undef rmdir
38# undef rename 68 #undef rename
39# undef lseek 69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
40 79
41# define chown(a,b,c) (errno = ENOSYS, -1) 80 #define EIO_STRUCT_STAT struct _stati64
42# define fchown(a,b,c) (errno = ENOSYS, -1) 81 #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 82
55#else 83#else
56 84
57# include "autoconf/config.h"
58# include <sys/time.h> 85 #include <sys/time.h>
59# include <sys/select.h> 86 #include <sys/select.h>
60# include <unistd.h> 87 #include <unistd.h>
61# include <utime.h> 88 #include <utime.h>
62# include <signal.h> 89 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 90
65#endif 91 #define EIO_STRUCT_STAT Stat_t
66 92
67#if HAVE_SENDFILE 93#endif
68# if __linux 94
69# include <sys/sendfile.h> 95/*****************************************************************************/
70# elif __freebsd 96
71# include <sys/socket.h> 97#if __GNUC__ >= 3
72# include <sys/uio.h> 98# define expect(expr,value) __builtin_expect ((expr),(value))
73# elif __hpux 99#else
74# include <sys/socket.h> 100# define expect(expr,value) (expr)
75# elif __solaris /* not yet */ 101#endif
76# include <sys/sendfile.h> 102
103#define expect_false(expr) expect ((expr) != 0, 0)
104#define expect_true(expr) expect ((expr) != 0, 1)
105
106/*****************************************************************************/
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109typedef int aio_rfd; /* read file desriptor */
110typedef int aio_wfd; /* write file descriptor */
111
112static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
113
114#define EIO_REQ_MEMBERS \
115 SV *callback; \
116 SV *sv1, *sv2; \
117 SV *sv3, *sv4; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126static int req_invoke (eio_req *req);
127#define EIO_FINISH(req) req_invoke (req)
128static void req_destroy (eio_req *grp);
129#define EIO_DESTROY(req) req_destroy (req)
130
131#include "libeio/eio.c"
132
133#if !HAVE_POSIX_FADVISE
134# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#if !HAVE_POSIX_MADVISE
138# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
139#endif
140
141#ifndef MAP_ANONYMOUS
142# ifdef MAP_ANON
143# define MAP_ANONYMOUS MAP_ANON
77# else 144# else
78# error sendfile support requested but not available 145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
79# endif 146# endif
80#endif 147#endif
81 148
82/* number of seconds after which idle threads exit */ 149/* defines all sorts of constants to 0 unless they are already defined */
83#define IDLE_TIMEOUT 10 150#include "def0.h"
84 151
85/* used for struct dirent, AIX doesn't provide it */ 152#ifndef makedev
86#ifndef NAME_MAX 153# define makedev(maj,min) (((maj) << 8) | (min))
87# define NAME_MAX 4096
88#endif 154#endif
89 155#ifndef major
90/* buffer size for various temporary buffers */ 156# 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 157#endif
158#ifndef minor
159# define minor(dev) ((dev) & 0xff)
160#endif
99 161
100#define dBUF \ 162#if PAGESIZE <= 0
101 char *aio_buf; \ 163# define PAGESIZE sysconf (_SC_PAGESIZE)
102 X_LOCK (wrklock); \ 164#endif
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
104 X_UNLOCK (wrklock); \
105 if (!aio_buf) \
106 return -1;
107 165
108typedef SV SV8; /* byte-sv, used for argument-checking */ 166/*****************************************************************************/
109 167
110enum { 168static void
111 REQ_QUIT, 169fiemap (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{ 170{
133 struct aio_cb *volatile next; 171 req->result = -1;
134 172
135 SV *callback; 173#if HAVE_FIEMAP
136 SV *sv1, *sv2; 174 /* assume some c99 */
137 void *ptr1, *ptr2; 175 struct fiemap *fiemap = 0;
138 off_t offs; 176 size_t end_offset;
139 size_t size; 177 int count = req->int3;
140 ssize_t result;
141 double nv1, nv2;
142 178
143 STRLEN stroffset; 179 req->flags |= EIO_FLAG_PTR1_FREE;
144 int type;
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148 180
149 unsigned char flags; 181 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
150 unsigned char pri; 182 /* increase in 3.5kb steps */
183 if (count < 0)
184 count = 8;
151 185
152 SV *self; /* the perl counterpart of this request, if any */ 186 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 187 errno = ENOMEM;
154} aio_cb; 188 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; 189 return;
196 190
197 if (!main_sig) 191 req->ptr1 = fiemap;
192
193 fiemap->fm_start = req->offs;
194 fiemap->fm_length = req->size;
195 fiemap->fm_flags = req->int2;
196 fiemap->fm_extent_count = count;
197
198 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
198 return; 199 return;
199 200
200 sigemptyset (&ss); 201 if (req->int3 >= 0 /* not autosizing */
201 sigaddset (&ss, main_sig); 202 || !fiemap->fm_mapped_extents /* no more extents */
202 pthread_sigmask (SIG_BLOCK, &ss, 0); 203 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
203} 204 goto done;
204 205
205void unblock_sig () 206 /* else we have to loop -
206{ 207 * it would be tempting (actually I tried that first) to just query the
207 sigset_t ss; 208 * number of extents needed, but linux often feels like not returning all
209 * extents, without telling us it left any out. this complicates
210 * this quite a bit.
211 */
208 212
209 if (--block_sig_level) 213 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
210 return;
211 214
212 if (!main_sig) 215 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 { 216 {
245 closedir (wrk->dirp); 217 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
246 wrk->dirp = 0; 218 char scratch[3072];
247 } 219 struct fiemap *incmap = (struct fiemap *)scratch;
248 220
249 if (wrk->dbuf) 221 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
250 { 222 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
251 free (wrk->dbuf); 223 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
252 wrk->dbuf = 0; 224 incmap->fm_flags = fiemap->fm_flags;
253 } 225 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
254}
255 226
256static void worker_free (worker *wrk) 227 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; 228 return;
351 229
352 --q->size; 230 if (!incmap->fm_mapped_extents)
231 goto done;
353 232
354 for (pri = NUM_PRI; pri--; ) 233 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
355 { 234 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
356 aio_req req = q->qs[pri]; 235 errno = ENOMEM;
357
358 if (req) 236 if (!fiemap)
237 return;
238
239 req->ptr1 = fiemap;
240
241 for (count = 0; count < incmap->fm_mapped_extents; ++count)
359 { 242 {
360 if (!(q->qs[pri] = req->next)) 243 struct fiemap_extent *e = incmap->fm_extents + count;
361 q->qe[pri] = 0;
362 244
363 return req; 245 if (e->fe_logical + e->fe_length >= end_offset)
246 goto done;
247
248 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
249
250 if (e->fe_flags & FIEMAP_EXTENT_LAST)
251 goto done;
252
364 } 253 }
365 } 254 }
366 255
367 abort (); 256done:
368} 257 req->result = 0;
369 258
370static int poll_cb (); 259#else
371static int req_invoke (aio_req req); 260 errno = ENOSYS;
261#endif
262}
263
264/*****************************************************************************/
265
266enum {
267 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
268};
269
270typedef eio_req *aio_req;
271typedef eio_req *aio_req_ornot;
272typedef eio_wd aio_wd;
273
274static SV *on_next_submit;
275static int next_pri = EIO_PRI_DEFAULT;
276static int max_outstanding;
277
278static s_epipe respipe;
279
372static void req_destroy (aio_req req); 280static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 281static void req_cancel (aio_req req);
374 282
283static void
284want_poll (void)
285{
286 /* write a dummy byte to the pipe so fh becomes ready */
287 s_epipe_signal (&respipe);
288}
289
290static void
291done_poll (void)
292{
293 /* read any signals sent by the worker threads */
294 s_epipe_drain (&respipe);
295}
296
375/* must be called at most once */ 297/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 298static SV *
299req_sv (aio_req req, HV *stash)
377{ 300{
378 if (!req->self) 301 if (!req->self)
379 { 302 {
380 req->self = (SV *)newHV (); 303 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 305 }
383 306
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 307 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 308}
386 309
387static aio_req SvAIO_REQ (SV *sv) 310static SV *
311newSVaio_wd (aio_wd wd)
312{
313 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
314}
315
316static aio_req
317SvAIO_REQ (SV *sv)
388{ 318{
389 MAGIC *mg; 319 MAGIC *mg;
390 320
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 321 if (!SvROK (sv)
322 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
323 || (SvSTASH (SvRV (sv)) != aio_grp_stash
324 && SvSTASH (SvRV (sv)) != aio_req_stash
325 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 326 croak ("object of class IO::AIO::REQ expected");
393 327
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 328 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 329
396 return mg ? (aio_req)mg->mg_ptr : 0; 330 return mg ? (aio_req)mg->mg_ptr : 0;
397} 331}
398 332
333static aio_wd
334SvAIO_WD (SV *sv)
335{
336 if (!SvROK (sv)
337 || SvTYPE (SvRV (sv)) != SVt_PVMG
338 || SvSTASH (SvRV (sv)) != aio_wd_stash)
339 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
340
341 return (aio_wd)(long)SvIVX (SvRV (sv));
342}
343
344static void
399static void aio_grp_feed (aio_req grp) 345aio_grp_feed (aio_req grp)
400{ 346{
401 block_sig (); 347 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 348 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 349 dSP;
410 350
411 ENTER; 351 ENTER;
412 SAVETMPS; 352 SAVETMPS;
413 PUSHMARK (SP); 353 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 354 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 355 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 356 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 357 SPAGAIN;
418 FREETMPS; 358 FREETMPS;
419 LEAVE; 359 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 } 360 }
430
431 unblock_sig ();
432} 361}
433 362
434static void aio_grp_dec (aio_req grp) 363static void
364req_submit (eio_req *req)
435{ 365{
436 --grp->size; 366 eio_submit (req);
437 367
438 /* call feeder, if applicable */ 368 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 369 {
444 block_sig (); 370 dSP;
371 SV *cb = sv_2mortal (on_next_submit);
445 372
446 if (!req_invoke (grp)) 373 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 374
453 req_destroy (grp); 375 PUSHMARK (SP);
454 unblock_sig (); 376 PUTBACK;
377 call_sv (cb, G_DISCARD | G_EVAL);
455 } 378 }
456} 379}
457 380
381static int
458static int req_invoke (aio_req req) 382req_invoke (eio_req *req)
459{ 383{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 384 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 385 SvREADONLY_off (req->sv2);
464 386
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 387 if (!EIO_CANCELLED (req) && req->callback)
466 { 388 {
389 dSP;
390 static SV *sv_result_cache; /* caches the result integer SV */
391 SV *sv_result;
392
467 ENTER; 393 ENTER;
468 SAVETMPS; 394 SAVETMPS;
469 PUSHMARK (SP); 395 PUSHMARK (SP);
470 EXTEND (SP, 1); 396 EXTEND (SP, 1);
471 397
398 /* do not recreate the result IV from scratch each time */
399 if (expect_true (sv_result_cache))
400 {
401 sv_result = sv_result_cache; sv_result_cache = 0;
402 SvIV_set (sv_result, req->result);
403 SvIOK_only (sv_result);
404 }
405 else
406 {
407 sv_result = newSViv (req->result);
408 SvREADONLY_on (sv_result);
409 }
410
472 switch (req->type) 411 switch (req->type)
473 { 412 {
413 case EIO_WD_OPEN:
414 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
415 break;
416
474 case REQ_READDIR: 417 case EIO_READDIR:
475 { 418 {
476 SV *rv = &PL_sv_undef; 419 SV *rv = &PL_sv_undef;
477 420
478 if (req->result >= 0) 421 if (req->result >= 0)
479 { 422 {
480 int i; 423 int i;
481 char *buf = req->ptr2; 424 char *names = (char *)req->ptr2;
425 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 426 AV *av = newAV ();
483 427
484 av_extend (av, req->result - 1); 428 av_extend (av, req->result - 1);
485 429
486 for (i = 0; i < req->result; ++i) 430 for (i = 0; i < req->result; ++i)
487 { 431 {
488 SV *sv = newSVpv (buf, 0); 432 if (req->int1 & EIO_READDIR_DENTS)
433 {
434 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 435
436 if (req->int1 & EIO_READDIR_CUSTOM2)
437 {
438 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
439 AV *avent = newAV ();
440
441 av_extend (avent, 2);
442
443 if (!sv_type [ent->type])
444 {
445 sv_type [ent->type] = newSViv (ent->type);
446 SvREADONLY_on (sv_type [ent->type]);
447 }
448
449 av_store (avent, 0, namesv);
450 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
451 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
452
453 av_store (av, i, newRV_noinc ((SV *)avent));
454 }
455 else
490 av_store (av, i, sv); 456 av_store (av, i, namesv);
457
458 ++ent;
459 }
460 else
461 {
462 SV *name = newSVpv (names, 0);
463 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 464 names += SvCUR (name) + 1;
465 }
492 } 466 }
493 467
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 468 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 469 }
496 470
497 PUSHs (rv); 471 PUSHs (rv);
472
473 if (req->int1 & EIO_READDIR_CUSTOM1)
474 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 475 }
499 break; 476 break;
500 477
501 case REQ_OPEN: 478 case EIO_OPEN:
502 { 479 {
503 /* convert fd to fh */ 480 /* convert fd to fh */
504 SV *fh; 481 SV *fh = &PL_sv_undef;
505 482
506 PUSHs (sv_2mortal (newSViv (req->result))); 483 if (req->result >= 0)
507 PUTBACK; 484 {
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 485 GV *gv = (GV *)sv_newmortal ();
509 SPAGAIN; 486 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
487 char sym [64];
488 int symlen;
489
490 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
491 gv_init (gv, aio_stash, sym, symlen, 0);
510 492
511 fh = POPs; 493 symlen = snprintf (
512 PUSHMARK (SP); 494 sym,
495 sizeof (sym),
496 "%s&=%d",
497 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
498 (int)req->result
499 );
500
501 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
502 fh = (SV *)gv;
503 }
504
513 XPUSHs (fh); 505 PUSHs (fh);
514 } 506 }
515 break; 507 break;
516 508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
511 {
512 SV *rv = &PL_sv_undef;
513
514#ifndef _WIN32
515 if (req->result >= 0)
516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
518 HV *hv = newHV ();
519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
520 * chooses to make it a struct.
521 */
522 unsigned long fsid = 0;
523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
524
525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
526
527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
538 }
539#endif
540
541 PUSHs (rv);
542 }
543
544 break;
545
517 case REQ_GROUP: 546 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
519 548
520 if (req->sv1) 549 if (req->sv1)
521 { 550 {
522 int i; 551 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
528 } 557 }
529 break; 558 break;
530 559
531 case REQ_NOP: 560 case EIO_NOP:
532 case REQ_BUSY: 561 case EIO_BUSY:
533 break; 562 break;
534 563
535 case REQ_READLINK: 564 case EIO_READLINK:
565 case EIO_REALPATH:
536 if (req->result > 0) 566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
537 { 598 {
538 SvCUR_set (req->sv2, req->result); 599#if HAVE_FIEMAP
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2); 600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
541 } 631 }
632 else
633 PUSHs (sv_result);
542 break; 634 break;
543 635
544 case REQ_STAT: 636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
545 case REQ_LSTAT: 637 if (req->result > 0)
546 case REQ_FSTAT: 638 SvIV_set (sv_result, 0);
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 639 /* 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;
558 640
559 default: 641 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
561 break; 643 break;
562 } 644 }
563 645
564 errno = req->errorno; 646 errno = req->errorno;
565 647
566 PUTBACK; 648 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
569 656
570 FREETMPS; 657 FREETMPS;
571 LEAVE; 658 LEAVE;
659
660 PUTBACK;
572 } 661 }
573 662
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); 663 return !!SvTRUE (ERRSV);
589} 664}
590 665
666static void
591static void req_destroy (aio_req req) 667req_destroy (aio_req req)
592{ 668{
593 if (req->self) 669 if (req->self)
594 { 670 {
595 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
596 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
597 } 673 }
598 674
599 SvREFCNT_dec (req->sv1); 675 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
602 680
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 681 free (req);
607} 682}
608 683
684static void
609static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
610{ 686{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
614 return; 688 return;
615 689
616 SvREFCNT_dec (grp->sv2); 690 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 691 grp->sv2 = 0;
618 692
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 694}
622 695
623static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
624{ 698{
625 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
626 700 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 701}
629 702
630X_THREAD_PROC (aio_proc); 703static void
631 704poll_wait (void)
632static void start_thread (void)
633{ 705{
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) 706 while (eio_nreqs ())
730 { 707 {
731 int size; 708 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 709
710 X_LOCK (reslock);
733 size = res_queue.size; 711 size = res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 712 X_UNLOCK (reslock);
735 713
736 if (size) 714 if (size)
737 return; 715 return;
738 716
739 maybe_start_thread (); 717 etp_maybe_start_thread ();
740 718
741 FD_ZERO(&rfd); 719 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 720 }
746} 721}
747 722
748static int poll_cb () 723static int
724poll_cb (void)
749{ 725{
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 (;;) 726 for (;;)
763 { 727 {
764 for (;;) 728 int res = eio_poll ();
729
730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758# define PROT_NONE 0
759# define PROT_WRITE 0
760# define MAP_PRIVATE 0
761# define MAP_SHARED 0
762# define MAP_FIXED 0
763#endif
764
765#define MMAP_MAGIC PERL_MAGIC_ext
766
767static int ecb_cold
768mmap_free (pTHX_ SV *sv, MAGIC *mg)
769{
770 int old_errno = errno;
771 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
772 errno = old_errno;
773
774 mg->mg_obj = 0; /* just in case */
775
776 SvREADONLY_off (sv);
777
778 if (SvPVX (sv) != mg->mg_ptr)
779 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
780
781 SvCUR_set (sv, 0);
782 SvPVX (sv) = 0;
783 SvOK_off (sv);
784
785 return 0;
786}
787
788static MGVTBL mmap_vtbl = {
789 0, 0, 0, 0, mmap_free
790};
791
792/*****************************************************************************/
793
794static SV *
795get_cb (SV *cb_sv)
796{
797 SvGETMAGIC (cb_sv);
798 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
799}
800
801static aio_req ecb_noinline
802dreq (SV *callback)
803{
804 SV *cb_cv;
805 aio_req req;
806 int req_pri = next_pri;
807 next_pri = EIO_PRI_DEFAULT;
808
809 cb_cv = get_cb (callback);
810
811 req = calloc (sizeof (*req), 1);
812 if (!req)
813 croak ("out of memory during eio_req allocation");
814
815 req->callback = SvREFCNT_inc (cb_cv);
816 req->pri = req_pri;
817
818 return req;
819}
820
821#define dREQ \
822 aio_req req = dreq (callback); \
823
824#define REQ_SEND \
825 PUTBACK; \
826 req_submit (req); \
827 SPAGAIN; \
828 \
829 if (GIMME_V != G_VOID) \
830 XPUSHs (req_sv (req, aio_req_stash));
831
832ecb_inline void
833req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
834{
835 if (expect_false (SvROK (path)))
836 {
837 SV *rv = SvRV (path);
838 SV *wdob;
839
840 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
765 { 841 {
766 maybe_start_thread (); 842 path = AvARRAY (rv)[1];
843 wdob = AvARRAY (rv)[0];
767 844
768 X_LOCK (reslock); 845 if (SvOK (wdob))
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 { 846 {
773 --npending; 847 *wd = SvAIO_WD (wdob);
774 848 *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 } 849 }
796 else 850 else
797 { 851 *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 } 852 }
853 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
854 {
855 *wd = (aio_wd)(long)SvIVX (rv);
856 *wdsv = SvREFCNT_inc_NN (rv);
857 *ptr = ".";
858 return; /* path set to "." */
859 }
860 else
861 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
862 }
821 863
822 if (nreqs <= max_outstanding) 864 *pathsv = newSVsv (path);
865 *ptr = SvPVbyte_nolen (*pathsv);
866}
867
868static void ecb_noinline
869req_set_path1 (aio_req req, SV *path)
870{
871 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
872}
873
874static void ecb_noinline
875req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
876{
877 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
878
879 switch (SvTYPE (rv))
880 {
881 case SVt_PVIO:
882 case SVt_PVLV:
883 case SVt_PVGV:
884 req->type = type_fh;
885 req->sv1 = newSVsv (fh_or_path);
886 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823 break; 887 break;
824 888
825 poll_wait (); 889 default:
826 890 req->type = type_path;
827 ++maxreqs; 891 req_set_path1 (req, fh_or_path);
892 break;
828 } 893 }
829
830 unblock_sig ();
831 return count;
832} 894}
833 895
834/*****************************************************************************/ 896XS(boot_IO__AIO) ecb_cold;
835/* work around various missing functions */
836 897
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 898MODULE = IO::AIO PACKAGE = IO::AIO
1379 899
1380PROTOTYPES: ENABLE 900PROTOTYPES: ENABLE
1381 901
1382BOOT: 902BOOT:
1383{ 903{
904 static const struct {
905 const char *name;
906 IV iv;
907 } *civ, const_iv[] = {
908# define const_niv(name, value) { # name, (IV) value },
909# define const_iv(name) { # name, (IV) name },
910# define const_eio(name) { # name, (IV) EIO_ ## name },
911
912 /* you have to re-run ./gendef0 after adding/Removing any constants here */
913
914 const_iv (ENOSYS)
915 const_iv (EXDEV)
916 const_iv (EBADR)
917
918 const_iv (O_RDONLY)
919 const_iv (O_WRONLY)
920 const_iv (O_RDWR)
921 const_iv (O_CREAT)
922 const_iv (O_TRUNC)
923 const_iv (O_EXCL)
924 const_iv (O_APPEND)
925
926 const_iv (O_ASYNC)
927 const_iv (O_DIRECT)
928 const_iv (O_NOATIME)
929
930 const_iv (O_CLOEXEC)
931 const_iv (O_NOCTTY)
932 const_iv (O_NOFOLLOW)
933 const_iv (O_NONBLOCK)
934 const_iv (O_EXEC)
935 const_iv (O_SEARCH)
936 const_iv (O_DIRECTORY)
937 const_iv (O_DSYNC)
938 const_iv (O_RSYNC)
939 const_iv (O_SYNC)
940 const_iv (O_TTY_INIT)
941
942 const_iv (S_IFIFO)
943 const_iv (S_IFCHR)
944 const_iv (S_IFBLK)
945 const_iv (S_IFLNK)
946 const_iv (S_IFREG)
947 const_iv (S_IFDIR)
948 const_iv (S_IFWHT)
949 const_iv (S_IFSOCK)
950 const_iv (S_IFMT)
951
952 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
953 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
954 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
955 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
956 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
957 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
958
959 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
960 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
961 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
962 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
963 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
964
965 const_iv (ST_RDONLY)
966 const_iv (ST_NOSUID)
967 const_iv (ST_NODEV)
968 const_iv (ST_NOEXEC)
969 const_iv (ST_SYNCHRONOUS)
970 const_iv (ST_MANDLOCK)
971 const_iv (ST_WRITE)
972 const_iv (ST_APPEND)
973 const_iv (ST_IMMUTABLE)
974 const_iv (ST_NOATIME)
975 const_iv (ST_NODIRATIME)
976 const_iv (ST_RELATIME)
977
978 const_iv (PROT_NONE)
979 const_iv (PROT_EXEC)
980 const_iv (PROT_READ)
981 const_iv (PROT_WRITE)
982
983 /*const_iv (MAP_FIXED)*/
984 const_iv (MAP_PRIVATE)
985 const_iv (MAP_SHARED)
986 const_iv (MAP_ANONYMOUS)
987
988 /* linuxish */
989 const_iv (MAP_HUGETLB)
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
994
995 const_iv (FIEMAP_FLAG_SYNC)
996 const_iv (FIEMAP_FLAG_XATTR)
997 const_iv (FIEMAP_FLAGS_COMPAT)
998 const_iv (FIEMAP_EXTENT_LAST)
999 const_iv (FIEMAP_EXTENT_UNKNOWN)
1000 const_iv (FIEMAP_EXTENT_DELALLOC)
1001 const_iv (FIEMAP_EXTENT_ENCODED)
1002 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1003 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1004 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1005 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1006 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1007 const_iv (FIEMAP_EXTENT_MERGED)
1008 const_iv (FIEMAP_EXTENT_SHARED)
1009
1010 const_iv (SPLICE_F_MOVE)
1011 const_iv (SPLICE_F_NONBLOCK)
1012 const_iv (SPLICE_F_MORE)
1013 const_iv (SPLICE_F_GIFT)
1014
1015 const_iv (SEEK_DATA)
1016 const_iv (SEEK_HOLE)
1017
1018 /* libeio constants */
1019 const_eio (SEEK_SET)
1020 const_eio (SEEK_CUR)
1021 const_eio (SEEK_END)
1022
1023 const_eio (MCL_FUTURE)
1024 const_eio (MCL_CURRENT)
1025
1026 const_eio (MS_ASYNC)
1027 const_eio (MS_INVALIDATE)
1028 const_eio (MS_SYNC)
1029
1030 const_eio (MT_MODIFY)
1031
1032 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1033 const_eio (SYNC_FILE_RANGE_WRITE)
1034 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1035
1036 const_eio (FALLOC_FL_KEEP_SIZE)
1037 const_eio (FALLOC_FL_PUNCH_HOLE)
1038
1039 const_eio (READDIR_DENTS)
1040 const_eio (READDIR_DIRS_FIRST)
1041 const_eio (READDIR_STAT_ORDER)
1042 const_eio (READDIR_FOUND_UNKNOWN)
1043
1044 const_eio (DT_UNKNOWN)
1045 const_eio (DT_FIFO)
1046 const_eio (DT_CHR)
1047 const_eio (DT_DIR)
1048 const_eio (DT_BLK)
1049 const_eio (DT_REG)
1050 const_eio (DT_LNK)
1051 const_eio (DT_SOCK)
1052 const_eio (DT_WHT)
1053 };
1054
1384 HV *stash = gv_stashpv ("IO::AIO", 1); 1055 aio_stash = gv_stashpv ("IO::AIO" , 1);
1056 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1057 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1058 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1385 1059
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1060 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1061 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 1062
1403 if (!create_pipe (respipe)) 1063 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1404 croak ("cannot set result pipe to nonblocking mode");
1405 1064
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 1065 reinit ();
1407} 1066}
1408 1067
1409void 1068void
1069reinit ()
1070 PROTOTYPE:
1071
1072void
1410max_poll_reqs (int nreqs) 1073max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1074 PROTOTYPE: $
1412 CODE: 1075 CODE:
1413 max_poll_reqs = nreqs; 1076 eio_set_max_poll_reqs (nreqs);
1414 1077
1415void 1078void
1416max_poll_time (double nseconds) 1079max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1080 PROTOTYPE: $
1418 CODE: 1081 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1082 eio_set_max_poll_time (nseconds);
1420 1083
1421void 1084void
1422min_parallel (int nthreads) 1085min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1086 PROTOTYPE: $
1432 CODE: 1087 CODE:
1433 set_max_idle (nthreads); 1088 eio_set_min_parallel (nthreads);
1434 1089
1435int 1090void
1436max_outstanding (int maxreqs) 1091max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1092 PROTOTYPE: $
1438 CODE: 1093 CODE:
1439 RETVAL = max_outstanding; 1094 eio_set_max_parallel (nthreads);
1095
1096void
1097max_idle (unsigned int nthreads)
1098 PROTOTYPE: $
1099 CODE:
1100 eio_set_max_idle (nthreads);
1101
1102void
1103idle_timeout (unsigned int seconds)
1104 PROTOTYPE: $
1105 CODE:
1106 eio_set_idle_timeout (seconds);
1107
1108void
1109max_outstanding (unsigned int maxreqs)
1110 PROTOTYPE: $
1111 CODE:
1440 max_outstanding = maxreqs; 1112 max_outstanding = maxreqs;
1441 OUTPUT: 1113
1442 RETVAL 1114void
1115aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1116 PPCODE:
1117{
1118 dREQ;
1119
1120 req->type = EIO_WD_OPEN;
1121 req_set_path1 (req, pathname);
1122
1123 REQ_SEND;
1124}
1443 1125
1444void 1126void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1127aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1128 PPCODE:
1448{ 1129{
1449 dREQ; 1130 dREQ;
1450 1131
1451 req->type = REQ_OPEN; 1132 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1133 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1134 req->int1 = flags;
1455 req->mode = mode; 1135 req->int2 = mode;
1456 1136
1457 REQ_SEND; 1137 REQ_SEND;
1458} 1138}
1459 1139
1460void 1140void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1141aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1142 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1143 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1144 aio_fdatasync = EIO_FDATASYNC
1145 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1146 PPCODE:
1468{ 1147{
1148 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1149 dREQ;
1470 1150
1471 req->type = ix; 1151 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1152 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1153 req->int1 = fd;
1474 1154
1475 REQ_SEND (req); 1155 REQ_SEND;
1156}
1157
1158void
1159aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1160 PPCODE:
1161{
1162 int fd = s_fileno_croak (fh, 0);
1163 dREQ;
1164
1165 req->type = EIO_SYNC_FILE_RANGE;
1166 req->sv1 = newSVsv (fh);
1167 req->int1 = fd;
1168 req->offs = offset;
1169 req->size = nbytes;
1170 req->int2 = flags;
1171
1172 REQ_SEND;
1173}
1174
1175void
1176aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1177 PPCODE:
1178{
1179 int fd = s_fileno_croak (fh, 0);
1180 dREQ;
1181
1182 req->type = EIO_FALLOCATE;
1183 req->sv1 = newSVsv (fh);
1184 req->int1 = fd;
1185 req->int2 = mode;
1186 req->offs = offset;
1187 req->size = len;
1188
1189 REQ_SEND;
1190}
1191
1192void
1193aio_close (SV *fh, SV *callback=&PL_sv_undef)
1194 PPCODE:
1195{
1196 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1197 int fd = s_fileno_croak (fh, 0);
1198 dREQ;
1199
1200 if (expect_false (close_fd < 0))
1201 {
1202 int pipefd [2];
1203
1204 if (
1205#ifdef _WIN32
1206 _pipe (pipefd, 1, _O_BINARY) < 0
1207#else
1208 pipe (pipefd) < 0
1209 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1210#endif
1211 || close (pipefd [1]) < 0
1212 )
1213 abort (); /*D*/
1214
1215 close_fd = pipefd [0];
1216 }
1217
1218 req->type = EIO_DUP2;
1219 req->int1 = close_fd;
1220 req->sv2 = newSVsv (fh);
1221 req->int2 = fd;
1222
1223 REQ_SEND;
1224}
1225
1226void
1227aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1228 PPCODE:
1229{
1230 int fd = s_fileno_croak (fh, 0);
1231 dREQ;
1232
1233 req->type = EIO_SEEK;
1234 req->sv1 = newSVsv (fh);
1235 req->int1 = fd;
1236 req->offs = SvVAL64 (offset);
1237 req->int2 = whence;
1238
1239 REQ_SEND;
1476} 1240}
1477 1241
1478void 1242void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1243aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1480 ALIAS: 1244 ALIAS:
1481 aio_read = REQ_READ 1245 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1246 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1247 PPCODE:
1485{ 1248{
1486 STRLEN svlen; 1249 STRLEN svlen;
1250 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1251 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1252 UV len = SvUV (length);
1489 1253
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1254 if (dataoffset < 0)
1494 dataoffset += svlen; 1255 dataoffset += svlen;
1495 1256
1496 if (dataoffset < 0 || dataoffset > svlen) 1257 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1258 croak ("dataoffset outside of data scalar");
1498 1259
1499 if (ix == REQ_WRITE) 1260 if (ix == EIO_WRITE)
1500 { 1261 {
1501 /* write: check length and adjust. */ 1262 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1263 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1264 len = svlen - dataoffset;
1504 } 1265 }
1505 else 1266 else
1506 { 1267 {
1507 /* read: grow scalar as necessary */ 1268 /* read: check type and grow scalar as necessary */
1269 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1508 svptr = SvGROW (data, len + dataoffset + 1); 1270 svptr = sv_grow (data, len + dataoffset + 1);
1271 else if (SvCUR (data) < len + dataoffset)
1272 croak ("length + dataoffset outside of scalar, and cannot grow");
1509 } 1273 }
1510
1511 if (len < 0)
1512 croak ("length must not be negative");
1513 1274
1514 { 1275 {
1515 dREQ; 1276 dREQ;
1516 1277
1517 req->type = ix; 1278 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1279 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1280 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1281 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1282 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1283 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1284 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1285 req->stroffset = dataoffset;
1526 1286
1527 if (!SvREADONLY (data)) 1287 if (!SvREADONLY (data))
1528 { 1288 {
1529 SvREADONLY_on (data); 1289 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1293 REQ_SEND;
1534 } 1294 }
1535} 1295}
1536 1296
1537void 1297void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1298aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $$;$ 1299 ALIAS:
1300 aio_readlink = EIO_READLINK
1301 aio_realpath = EIO_REALPATH
1540 PPCODE: 1302 PPCODE:
1541{ 1303{
1542 SV *data;
1543 dREQ; 1304 dREQ;
1544 1305
1545 data = newSV (NAME_MAX);
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK; 1306 req->type = ix;
1549 req->sv1 = newSVsv (path); 1307 req_set_path1 (req, pathname);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553 1308
1554 REQ_SEND; 1309 REQ_SEND;
1555} 1310}
1556 1311
1557void 1312void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1313aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE: 1314 PPCODE:
1561{ 1315{
1316 int ifd = s_fileno_croak (in_fh , 0);
1317 int ofd = s_fileno_croak (out_fh, 1);
1562 dREQ; 1318 dREQ;
1563 1319
1564 req->type = REQ_SENDFILE; 1320 req->type = EIO_SENDFILE;
1565 req->sv1 = newSVsv (out_fh); 1321 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1322 req->int1 = ofd;
1567 req->sv2 = newSVsv (in_fh); 1323 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1324 req->int2 = ifd;
1569 req->offs = SvVAL64 (in_offset); 1325 req->offs = in_offset;
1570 req->size = length; 1326 req->size = length;
1571 1327
1572 REQ_SEND; 1328 REQ_SEND;
1573} 1329}
1574 1330
1575void 1331void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1332aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE: 1333 PPCODE:
1579{ 1334{
1335 int fd = s_fileno_croak (fh, 0);
1580 dREQ; 1336 dREQ;
1581 1337
1582 req->type = REQ_READAHEAD; 1338 req->type = EIO_READAHEAD;
1583 req->sv1 = newSVsv (fh); 1339 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1340 req->int1 = fd;
1585 req->offs = SvVAL64 (offset); 1341 req->offs = offset;
1586 req->size = length; 1342 req->size = length;
1587 1343
1588 REQ_SEND; 1344 REQ_SEND;
1589} 1345}
1590 1346
1591void 1347void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1348aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS: 1349 ALIAS:
1594 aio_stat = REQ_STAT 1350 aio_stat = EIO_STAT
1595 aio_lstat = REQ_LSTAT 1351 aio_lstat = EIO_LSTAT
1352 aio_statvfs = EIO_STATVFS
1596 PPCODE: 1353 PPCODE:
1597{ 1354{
1598 dREQ; 1355 dREQ;
1599 1356
1600 req->ptr2 = malloc (sizeof (Stat_t)); 1357 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 1358
1621 REQ_SEND; 1359 REQ_SEND;
1622} 1360}
1361
1362UV
1363major (UV dev)
1364 ALIAS:
1365 minor = 1
1366 CODE:
1367 RETVAL = ix ? major (dev) : minor (dev);
1368 OUTPUT:
1369 RETVAL
1370
1371UV
1372makedev (UV maj, UV min)
1373 CODE:
1374 RETVAL = makedev (maj, min);
1375 OUTPUT:
1376 RETVAL
1623 1377
1624void 1378void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1379aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1626 PPCODE: 1380 PPCODE:
1627{ 1381{
1628 dREQ; 1382 dREQ;
1629 1383
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1384 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1385 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1386 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 1387
1645 REQ_SEND; 1388 REQ_SEND;
1646} 1389}
1647 1390
1648void 1391void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1392aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1650 PPCODE: 1393 PPCODE:
1651{ 1394{
1652 dREQ; 1395 dREQ;
1653 1396
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1397 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1398 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 1399
1668 REQ_SEND; 1400 REQ_SEND;
1669} 1401}
1670 1402
1671void 1403void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1404aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1673 PPCODE: 1405 PPCODE:
1674{ 1406{
1675 dREQ; 1407 dREQ;
1676 1408
1677 req->mode = mode; 1409 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1410 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 1411
1691 REQ_SEND; 1412 REQ_SEND;
1692} 1413}
1693 1414
1694void 1415void
… …
1697{ 1418{
1698 dREQ; 1419 dREQ;
1699 1420
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1421 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1422 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1423 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703 1424
1704 if (SvPOK (fh_or_path)) 1425 REQ_SEND;
1705 { 1426}
1706 req->type = REQ_CHOWN; 1427
1707 req->ptr1 = SvPVbyte_nolen (req->sv1); 1428void
1708 } 1429aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1709 else 1430 PPCODE:
1710 { 1431{
1711 req->type = REQ_FCHOWN; 1432 dREQ;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1433
1713 } 1434 req->type = EIO_READDIR;
1435 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1436
1437 if (flags & EIO_READDIR_DENTS)
1438 req->int1 |= EIO_READDIR_CUSTOM2;
1439
1440 req_set_path1 (req, pathname);
1441
1442 REQ_SEND;
1443}
1444
1445void
1446aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1447 PPCODE:
1448{
1449 dREQ;
1450
1451 req->type = EIO_MKDIR;
1452 req->int2 = mode;
1453 req_set_path1 (req, pathname);
1714 1454
1715 REQ_SEND; 1455 REQ_SEND;
1716} 1456}
1717 1457
1718void 1458void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1459aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1720 ALIAS: 1460 ALIAS:
1721 aio_unlink = REQ_UNLINK 1461 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1462 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1463 aio_readdir = EIO_READDIR
1724 PPCODE: 1464 PPCODE:
1725{ 1465{
1726 dREQ; 1466 dREQ;
1727 1467
1728 req->type = ix; 1468 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 1469 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 1470
1746 REQ_SEND; 1471 REQ_SEND;
1747} 1472}
1748 1473
1749void 1474void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1475aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS: 1476 ALIAS:
1752 aio_link = REQ_LINK 1477 aio_link = EIO_LINK
1753 aio_symlink = REQ_SYMLINK 1478 aio_symlink = EIO_SYMLINK
1754 aio_rename = REQ_RENAME 1479 aio_rename = EIO_RENAME
1755 PPCODE: 1480 PPCODE:
1756{ 1481{
1482 eio_wd wd2 = 0;
1757 dREQ; 1483 dREQ;
1758 1484
1759 req->type = ix; 1485 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 1486 req_set_path1 (req, oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 1487 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1762 req->sv1 = newSVsv (newpath); 1488 req->int3 = (long)wd2;
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1489
1765 REQ_SEND; 1490 REQ_SEND;
1766} 1491}
1767 1492
1768void 1493void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1494aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1770 PPCODE: 1495 PPCODE:
1771{ 1496{
1772 dREQ; 1497 dREQ;
1773 1498
1774 req->type = REQ_MKNOD; 1499 req->type = EIO_MKNOD;
1775 req->sv1 = newSVsv (pathname);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1);
1777 req->mode = (mode_t)mode; 1500 req->int2 = (mode_t)mode;
1778 req->offs = dev; 1501 req->offs = dev;
1502 req_set_path1 (req, pathname);
1779 1503
1780 REQ_SEND; 1504 REQ_SEND;
1781} 1505}
1782 1506
1783void 1507void
1508aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1509 ALIAS:
1510 aio_mtouch = EIO_MTOUCH
1511 aio_msync = EIO_MSYNC
1512 PPCODE:
1513{
1514 STRLEN svlen;
1515 char *svptr = SvPVbyte (data, svlen);
1516 UV len = SvUV (length);
1517
1518 if (offset < 0)
1519 offset += svlen;
1520
1521 if (offset < 0 || offset > svlen)
1522 croak ("offset outside of scalar");
1523
1524 if (!SvOK (length) || len + offset > svlen)
1525 len = svlen - offset;
1526
1527 {
1528 dREQ;
1529
1530 req->type = ix;
1531 req->sv2 = SvREFCNT_inc (data);
1532 req->ptr2 = (char *)svptr + offset;
1533 req->size = len;
1534 req->int1 = flags;
1535
1536 REQ_SEND;
1537 }
1538}
1539
1540void
1541aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1542 PPCODE:
1543{
1544 STRLEN svlen;
1545 char *svptr = SvPVbyte (data, svlen);
1546 UV len = SvUV (length);
1547
1548 if (offset < 0)
1549 offset += svlen;
1550
1551 if (offset < 0 || offset > svlen)
1552 croak ("offset outside of scalar");
1553
1554 if (!SvOK (length) || len + offset > svlen)
1555 len = svlen - offset;
1556
1557 {
1558 dREQ;
1559
1560 req->type = EIO_MLOCK;
1561 req->sv2 = SvREFCNT_inc (data);
1562 req->ptr2 = (char *)svptr + offset;
1563 req->size = len;
1564
1565 REQ_SEND;
1566 }
1567}
1568
1569void
1570aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1571 PPCODE:
1572{
1573 dREQ;
1574
1575 req->type = EIO_MLOCKALL;
1576 req->int1 = flags;
1577
1578 REQ_SEND;
1579}
1580
1581void
1582aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1583 PPCODE:
1584{
1585 int fd = s_fileno_croak (fh, 0);
1586 dREQ;
1587
1588 req->type = EIO_CUSTOM;
1589 req->sv1 = newSVsv (fh);
1590 req->int1 = fd;
1591
1592 req->feed = fiemap;
1593#if HAVE_FIEMAP
1594 /* keep our fingers crossed that the next two types are 64 bit */
1595 req->offs = start;
1596 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1597 req->int2 = flags;
1598 req->int3 = SvOK (count) ? SvIV (count) : -1;
1599#endif
1600
1601 REQ_SEND;
1602}
1603
1604void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1605aio_busy (double delay, SV *callback=&PL_sv_undef)
1785 PPCODE: 1606 PPCODE:
1786{ 1607{
1787 dREQ; 1608 dREQ;
1788 1609
1789 req->type = REQ_BUSY; 1610 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 1611 req->nv1 = delay < 0. ? 0. : delay;
1791 1612
1792 REQ_SEND; 1613 REQ_SEND;
1793} 1614}
1794 1615
1795void 1616void
1796aio_group (SV *callback=&PL_sv_undef) 1617aio_group (SV *callback=&PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 1618 PPCODE:
1799{ 1619{
1800 dREQ; 1620 dREQ;
1801 1621
1802 req->type = REQ_GROUP; 1622 req->type = EIO_GROUP;
1803 1623
1624 PUTBACK;
1804 req_send (req); 1625 req_submit (req);
1626 SPAGAIN;
1627
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1628 XPUSHs (req_sv (req, aio_grp_stash));
1806} 1629}
1807 1630
1808void 1631void
1809aio_nop (SV *callback=&PL_sv_undef) 1632aio_nop (SV *callback=&PL_sv_undef)
1633 ALIAS:
1634 aio_nop = EIO_NOP
1635 aio_sync = EIO_SYNC
1810 PPCODE: 1636 PPCODE:
1811{ 1637{
1812 dREQ; 1638 dREQ;
1813 1639
1814 req->type = REQ_NOP; 1640 req->type = ix;
1815 1641
1816 REQ_SEND; 1642 REQ_SEND;
1817} 1643}
1818 1644
1819int 1645int
1820aioreq_pri (int pri = 0) 1646aioreq_pri (int pri = 0)
1821 PROTOTYPE: ;$
1822 CODE: 1647 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 1648 RETVAL = next_pri;
1824 if (items > 0) 1649 if (items > 0)
1825 { 1650 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 1651 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 1652 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 1653 next_pri = pri;
1829 } 1654 }
1830 OUTPUT: 1655 OUTPUT:
1831 RETVAL 1656 RETVAL
1832 1657
1833void 1658void
1834aioreq_nice (int nice = 0) 1659aioreq_nice (int nice = 0)
1835 CODE: 1660 CODE:
1836 nice = next_pri - nice; 1661 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 1662 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 1663 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 1664 next_pri = nice;
1840 1665
1841void 1666void
1842flush () 1667flush ()
1843 PROTOTYPE:
1844 CODE: 1668 CODE:
1845 while (nreqs) 1669 while (eio_nreqs ())
1846 { 1670 {
1847 poll_wait (); 1671 poll_wait ();
1848 poll_cb (); 1672 poll_cb ();
1849 } 1673 }
1850 1674
1851int 1675int
1852poll() 1676poll ()
1853 PROTOTYPE:
1854 CODE: 1677 CODE:
1855 poll_wait (); 1678 poll_wait ();
1856 RETVAL = poll_cb (); 1679 RETVAL = poll_cb ();
1857 OUTPUT: 1680 OUTPUT:
1858 RETVAL 1681 RETVAL
1859 1682
1860int 1683int
1861poll_fileno() 1684poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 1685 CODE:
1864 RETVAL = respipe [0]; 1686 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 1687 OUTPUT:
1866 RETVAL 1688 RETVAL
1867 1689
1868int 1690int
1869poll_cb(...) 1691poll_cb (...)
1870 PROTOTYPE: 1692 PROTOTYPE:
1871 CODE: 1693 CODE:
1872 RETVAL = poll_cb (); 1694 RETVAL = poll_cb ();
1873 OUTPUT: 1695 OUTPUT:
1874 RETVAL 1696 RETVAL
1875 1697
1876void 1698void
1877poll_wait() 1699poll_wait ()
1878 PROTOTYPE:
1879 CODE: 1700 CODE:
1880 poll_wait (); 1701 poll_wait ();
1881 1702
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 1703int
1920nreqs() 1704nreqs ()
1921 PROTOTYPE:
1922 CODE: 1705 CODE:
1923 RETVAL = nreqs; 1706 RETVAL = eio_nreqs ();
1924 OUTPUT: 1707 OUTPUT:
1925 RETVAL 1708 RETVAL
1926 1709
1927int 1710int
1928nready() 1711nready ()
1929 PROTOTYPE:
1930 CODE: 1712 CODE:
1931 RETVAL = get_nready (); 1713 RETVAL = eio_nready ();
1932 OUTPUT: 1714 OUTPUT:
1933 RETVAL 1715 RETVAL
1934 1716
1935int 1717int
1936npending() 1718npending ()
1937 PROTOTYPE:
1938 CODE: 1719 CODE:
1939 RETVAL = get_npending (); 1720 RETVAL = eio_npending ();
1940 OUTPUT: 1721 OUTPUT:
1941 RETVAL 1722 RETVAL
1942 1723
1943int 1724int
1944nthreads() 1725nthreads ()
1945 PROTOTYPE:
1946 CODE: 1726 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1727 RETVAL = eio_nthreads ();
1948 RETVAL = started;
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1950 OUTPUT: 1728 OUTPUT:
1951 RETVAL 1729 RETVAL
1952 1730
1731int
1732fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1733 CODE:
1734 RETVAL = posix_fadvise (fh, offset, length, advice);
1735 OUTPUT:
1736 RETVAL
1737
1738IV
1739sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1740 CODE:
1741 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1742 OUTPUT:
1743 RETVAL
1744
1745void
1746mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1747 PPCODE:
1748 sv_unmagic (scalar, MMAP_MAGIC);
1749{
1750 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1751 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1752 if (addr == (void *)-1)
1753 XSRETURN_NO;
1754
1755 sv_force_normal (scalar);
1756
1757 /* we store the length in mg_obj, as namlen is I32 :/ */
1758 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1759 ->mg_obj = (SV *)length;
1760
1761 SvUPGRADE (scalar, SVt_PV); /* nop... */
1762
1763 if (!(prot & PROT_WRITE))
1764 SvREADONLY_on (scalar);
1765
1766 if (SvLEN (scalar))
1767 Safefree (SvPVX (scalar));
1768
1769 SvPVX (scalar) = (char *)addr;
1770 SvCUR_set (scalar, length);
1771 SvLEN_set (scalar, 0);
1772 SvPOK_only (scalar);
1773
1774 XSRETURN_YES;
1775}
1776
1777void
1778munmap (SV *scalar)
1779 CODE:
1780 sv_unmagic (scalar, MMAP_MAGIC);
1781
1782int
1783madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1784 ALIAS:
1785 mprotect = 1
1786 CODE:
1787{
1788 STRLEN svlen;
1789 void *addr = SvPVbyte (scalar, svlen);
1790 size_t len = SvUV (length);
1791
1792 if (offset < 0)
1793 offset += svlen;
1794
1795 if (offset < 0 || offset > svlen)
1796 croak ("offset outside of scalar");
1797
1798 if (!SvOK (length) || len + offset > svlen)
1799 len = svlen - offset;
1800
1801 addr = (void *)(((intptr_t)addr) + offset);
1802 eio_page_align (&addr, &len);
1803
1804 switch (ix)
1805 {
1806 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1807 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1808 }
1809}
1810 OUTPUT:
1811 RETVAL
1812
1813int
1814munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1815 CODE:
1816{
1817 STRLEN svlen;
1818 void *addr = SvPVbyte (scalar, svlen);
1819 size_t len = SvUV (length);
1820
1821 if (offset < 0)
1822 offset += svlen;
1823
1824 if (offset < 0 || offset > svlen)
1825 croak ("offset outside of scalar");
1826
1827 if (!SvOK (length) || len + offset > svlen)
1828 len = svlen - offset;
1829
1830 addr = (void *)(((intptr_t)addr) + offset);
1831 eio_page_align (&addr, &len);
1832#if _POSIX_MEMLOCK_RANGE
1833 RETVAL = munlock (addr, len);
1834#else
1835 RETVAL = EIO_ENOSYS ();
1836#endif
1837}
1838 OUTPUT:
1839 RETVAL
1840
1841int
1842munlockall ()
1843 CODE:
1844#if _POSIX_MEMLOCK
1845 munlockall ();
1846#else
1847 RETVAL = EIO_ENOSYS ();
1848#endif
1849 OUTPUT:
1850 RETVAL
1851
1852int
1853splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1854 CODE:
1855{
1856#if HAVE_LINUX_SPLICE
1857 loff_t off_in_, off_out_;
1858 RETVAL = splice (
1859 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1860 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1861 length, flags
1862 );
1863#else
1864 RETVAL = EIO_ENOSYS ();
1865#endif
1866}
1867 OUTPUT:
1868 RETVAL
1869
1870int
1871tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1872 CODE:
1873#if HAVE_LINUX_SPLICE
1874 RETVAL = tee (rfh, wfh, length, flags);
1875#else
1876 RETVAL = EIO_ENOSYS ();
1877#endif
1878 OUTPUT:
1879 RETVAL
1880
1881int
1882pipesize (aio_rfd rfh, int new_size = -1)
1883 PROTOTYPE: $;$
1884 CODE:
1885#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1886 if (new_size >= 0)
1887 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1888 else
1889 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1890#else
1891 errno = ENOSYS;
1892 RETVAL = -1;
1893#endif
1894 OUTPUT:
1895 RETVAL
1896
1897void _on_next_submit (SV *cb)
1898 CODE:
1899 SvREFCNT_dec (on_next_submit);
1900 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1901
1953PROTOTYPES: DISABLE 1902PROTOTYPES: DISABLE
1903
1904MODULE = IO::AIO PACKAGE = IO::AIO::WD
1905
1906BOOT:
1907{
1908 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1909 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1910}
1911
1912void
1913DESTROY (SV *self)
1914 CODE:
1915{
1916 aio_wd wd = SvAIO_WD (self);
1917#if HAVE_AT
1918 {
1919 SV *callback = &PL_sv_undef;
1920 dREQ; /* clobbers next_pri :/ */
1921 next_pri = req->pri; /* restore next_pri */
1922 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1923 req->type = EIO_WD_CLOSE;
1924 req->wd = wd;
1925 REQ_SEND;
1926 }
1927#else
1928 eio_wd_close_sync (wd);
1929#endif
1930}
1954 1931
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1932MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 1933
1957void 1934void
1958cancel (aio_req_ornot req) 1935cancel (aio_req_ornot req)
1959 CODE: 1936 CODE:
1960 req_cancel (req); 1937 eio_cancel (req);
1961 1938
1962void 1939void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1940cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1964 CODE: 1941 PPCODE:
1942{
1943 if (GIMME_V != G_VOID)
1944 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1945
1946 if (items > 1)
1947 {
1948 SV *cb_cv =get_cb (callback);
1949
1965 SvREFCNT_dec (req->callback); 1950 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 1951 req->callback = SvREFCNT_inc (cb_cv);
1952 }
1953}
1967 1954
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1955MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 1956
1970void 1957void
1971add (aio_req grp, ...) 1958add (aio_req grp, ...)
1972 PPCODE: 1959 PPCODE:
1973{ 1960{
1974 int i; 1961 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 1962
1980 if (grp->int1 == 2) 1963 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1964 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 1965
1983 for (i = 1; i < items; ++i ) 1966 for (i = 1; i < items; ++i )
1984 { 1967 {
1968 aio_req req;
1969
1985 if (GIMME_V != G_VOID) 1970 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1971 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 1972
1988 req = SvAIO_REQ (ST (i)); 1973 req = SvAIO_REQ (ST (i));
1989 1974
1990 if (req) 1975 if (req)
1991 { 1976 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 } 1977 }
2004} 1978}
2005 1979
2006void 1980void
2007cancel_subs (aio_req_ornot req) 1981cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 1990 AV *av;
2017 1991
2018 grp->errorno = errno; 1992 grp->errorno = errno;
2019 1993
2020 av = newAV (); 1994 av = newAV ();
1995 av_extend (av, items - 1);
2021 1996
2022 for (i = 1; i < items; ++i ) 1997 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 1998 av_push (av, newSVsv (ST (i)));
2024 1999
2025 SvREFCNT_dec (grp->sv1); 2000 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 2007 grp->errorno = errorno;
2033 2008
2034void 2009void
2035limit (aio_req grp, int limit) 2010limit (aio_req grp, int limit)
2036 CODE: 2011 CODE:
2037 grp->int2 = limit; 2012 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 2013
2040void 2014void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 2015feed (aio_req grp, SV *callback=&PL_sv_undef)
2042 CODE: 2016 CODE:
2043{ 2017{
2044 SvREFCNT_dec (grp->sv2); 2018 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 2019 grp->sv2 = newSVsv (callback);
2020 grp->feed = aio_grp_feed;
2046 2021
2047 if (grp->int2 <= 0) 2022 if (grp->int2 <= 0)
2048 grp->int2 = 2; 2023 grp->int2 = 2;
2049 2024
2050 aio_grp_feed (grp); 2025 eio_grp_limit (grp, grp->int2);
2051} 2026}
2052 2027

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