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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.85 by root, Sat Oct 28 23:32:29 2006 UTC vs.
Revision 1.238 by root, Thu Jan 21 23:04:46 2016 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 21# include <sys/mman.h>
39# elif __hpux 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
46#ifdef _WIN32
47
48 // perl overrides all those nice libc functions
49
50 #undef malloc
51 #undef free
52 #undef open
53 #undef read
54 #undef write
55 #undef send
56 #undef recv
57 #undef stat
58 #undef lstat
59 #undef fstat
60 #undef truncate
61 #undef ftruncate
62 #undef open
63 #undef link
64 #undef close
65 #undef unlink
66 #undef mkdir
67 #undef rmdir
68 #undef rename
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
79
80 #define EIO_STRUCT_STAT struct _stati64
81 #define EIO_STRUCT_STATI64
82
83#else
84
40# include <sys/socket.h> 85 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 86 #include <sys/select.h>
87 #include <unistd.h>
88 #include <utime.h>
89 #include <signal.h>
90
91 #define EIO_STRUCT_STAT Stat_t
92
93#endif
94
95/*****************************************************************************/
96
97#if __GNUC__ >= 3
98# define expect(expr,value) __builtin_expect ((expr),(value))
99#else
100# define expect(expr,value) (expr)
101#endif
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
43# else 144# else
44# error sendfile support requested but not available 145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 146# endif
46#endif 147#endif
47 148
48/* number of seconds after which idle threads exit */ 149/* defines all sorts of constants to 0 unless they are already defined */
49#define IDLE_TIMEOUT 10 150/* also provides const_iv_ and const_niv_ macros for them */
151#include "def0.h"
50 152
51/* used for struct dirent, AIX doesn't provide it */ 153#ifndef makedev
52#ifndef NAME_MAX 154# define makedev(maj,min) (((maj) << 8) | (min))
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 155#endif
156#ifndef major
157# define major(dev) ((dev) >> 8)
79#endif 158#endif
159#ifndef minor
160# define minor(dev) ((dev) & 0xff)
161#endif
80 162
81/* buffer size for various temporary buffers */ 163#if PAGESIZE <= 0
82#define AIO_BUFSIZE 65536 164# define PAGESIZE sysconf (_SC_PAGESIZE)
165#endif
83 166
84#define dBUF \ 167/*****************************************************************************/
85 char *aio_buf; \ 168
86 LOCK (wrklock); \ 169static void
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 170fiemap (eio_req *req)
88 UNLOCK (wrklock); \ 171{
89 if (!aio_buf) \ 172 req->result = -1;
173
174#if HAVE_FIEMAP
175 /* assume some c99 */
176 struct fiemap *fiemap = 0;
177 size_t end_offset;
178 int count = req->int3;
179
180 req->flags |= EIO_FLAG_PTR1_FREE;
181
182 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
183 /* increase in 3.5kb steps */
184 if (count < 0)
185 count = 8;
186
187 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
188 errno = ENOMEM;
189 if (!fiemap)
90 return -1; 190 return;
91 191
92enum { 192 req->ptr1 = fiemap;
93 REQ_QUIT,
94 REQ_OPEN, REQ_CLOSE,
95 REQ_READ, REQ_WRITE, REQ_READAHEAD,
96 REQ_SENDFILE,
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
98 REQ_FSYNC, REQ_FDATASYNC,
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
100 REQ_MKNOD, REQ_READDIR,
101 REQ_LINK, REQ_SYMLINK,
102 REQ_GROUP, REQ_NOP,
103 REQ_BUSY,
104};
105 193
106#define AIO_REQ_KLASS "IO::AIO::REQ" 194 fiemap->fm_start = req->offs;
107#define AIO_GRP_KLASS "IO::AIO::GRP" 195 fiemap->fm_length = req->size;
196 fiemap->fm_flags = req->int2;
197 fiemap->fm_extent_count = count;
108 198
109typedef struct aio_cb 199 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
110{ 200 return;
111 struct aio_cb *volatile next;
112 201
113 SV *data, *callback; 202 if (req->int3 >= 0 /* not autosizing */
114 SV *fh, *fh2; 203 || !fiemap->fm_mapped_extents /* no more extents */
115 void *dataptr, *data2ptr; 204 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
116 Stat_t *statdata; 205 goto done;
117 off_t offset;
118 size_t length;
119 ssize_t result;
120 206
121 STRLEN dataoffset; 207 /* else we have to loop -
122 int type; 208 * it would be tempting (actually I tried that first) to just query the
123 int fd, fd2; 209 * number of extents needed, but linux often feels like not returning all
124 int errorno; 210 * extents, without telling us it left any out. this complicates
125 mode_t mode; /* open */ 211 * this quite a bit.
212 */
126 213
127 unsigned char flags; 214 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
128 unsigned char pri;
129 215
130 SV *self; /* the perl counterpart of this request, if any */ 216 for (;;)
131 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
132} aio_cb;
133
134enum {
135 FLAG_CANCELLED = 0x01,
136};
137
138typedef aio_cb *aio_req;
139typedef aio_cb *aio_req_ornot;
140
141enum {
142 PRI_MIN = -4,
143 PRI_MAX = 4,
144
145 DEFAULT_PRI = 0,
146 PRI_BIAS = -PRI_MIN,
147 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
148};
149
150#define AIO_TICKS ((1000000 + 1023) >> 10)
151
152static unsigned int max_poll_time = 0;
153static unsigned int max_poll_reqs = 0;
154
155/* calculcate time difference in ~1/AIO_TICKS of a second */
156static int tvdiff (struct timeval *tv1, struct timeval *tv2)
157{
158 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
159 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
160}
161
162static int next_pri = DEFAULT_PRI + PRI_BIAS;
163
164static unsigned int started, idle, wanted;
165
166#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
167# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
168#else
169# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
170#endif
171
172#define LOCK(mutex) pthread_mutex_lock (&(mutex))
173#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
174
175/* worker threads management */
176static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
177
178typedef struct worker {
179 /* locked by wrklock */
180 struct worker *prev, *next;
181
182 pthread_t tid;
183
184 /* locked by reslock, reqlock or wrklock */
185 aio_req req; /* currently processed request */
186 void *dbuf;
187 DIR *dirp;
188} worker;
189
190static worker wrk_first = { &wrk_first, &wrk_first, 0 };
191
192static void worker_clear (worker *wrk)
193{
194 if (wrk->dirp)
195 { 217 {
196 closedir (wrk->dirp); 218 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
197 wrk->dirp = 0; 219 char scratch[3072];
198 } 220 struct fiemap *incmap = (struct fiemap *)scratch;
199 221
200 if (wrk->dbuf) 222 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
201 { 223 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
202 free (wrk->dbuf); 224 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
203 wrk->dbuf = 0; 225 incmap->fm_flags = fiemap->fm_flags;
204 } 226 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
205}
206 227
207static void worker_free (worker *wrk) 228 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
208{
209 wrk->next->prev = wrk->prev;
210 wrk->prev->next = wrk->next;
211
212 free (wrk);
213}
214
215static volatile unsigned int nreqs, nready, npending;
216static volatile unsigned int max_idle = 4;
217static volatile unsigned int max_outstanding = 0xffffffff;
218static int respipe [2];
219
220static pthread_mutex_t reslock = AIO_MUTEX_INIT;
221static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
222static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
223
224#if WORDACCESS_UNSAFE
225
226static unsigned int get_nready ()
227{
228 unsigned int retval;
229
230 LOCK (reqlock);
231 retval = nready;
232 UNLOCK (reqlock);
233
234 return retval;
235}
236
237static unsigned int get_npending ()
238{
239 unsigned int retval;
240
241 LOCK (reslock);
242 retval = npending;
243 UNLOCK (reslock);
244
245 return retval;
246}
247
248static unsigned int get_nthreads ()
249{
250 unsigned int retval;
251
252 LOCK (wrklock);
253 retval = started;
254 UNLOCK (wrklock);
255
256 return retval;
257}
258
259#else
260
261# define get_nready() nready
262# define get_npending() npending
263# define get_nthreads() started
264
265#endif
266
267/*
268 * a somewhat faster data structure might be nice, but
269 * with 8 priorities this actually needs <20 insns
270 * per shift, the most expensive operation.
271 */
272typedef struct {
273 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
274 int size;
275} reqq;
276
277static reqq req_queue;
278static reqq res_queue;
279
280int reqq_push (reqq *q, aio_req req)
281{
282 int pri = req->pri;
283 req->next = 0;
284
285 if (q->qe[pri])
286 {
287 q->qe[pri]->next = req;
288 q->qe[pri] = req;
289 }
290 else
291 q->qe[pri] = q->qs[pri] = req;
292
293 return q->size++;
294}
295
296aio_req reqq_shift (reqq *q)
297{
298 int pri;
299
300 if (!q->size)
301 return 0; 229 return;
302 230
303 --q->size; 231 if (!incmap->fm_mapped_extents)
232 goto done;
304 233
305 for (pri = NUM_PRI; pri--; ) 234 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
306 { 235 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
307 aio_req req = q->qs[pri]; 236 errno = ENOMEM;
308
309 if (req) 237 if (!fiemap)
238 return;
239
240 req->ptr1 = fiemap;
241
242 for (count = 0; count < incmap->fm_mapped_extents; ++count)
310 { 243 {
311 if (!(q->qs[pri] = req->next)) 244 struct fiemap_extent *e = incmap->fm_extents + count;
312 q->qe[pri] = 0;
313 245
314 return req; 246 if (e->fe_logical + e->fe_length >= end_offset)
247 goto done;
248
249 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
250
251 if (e->fe_flags & FIEMAP_EXTENT_LAST)
252 goto done;
253
315 } 254 }
316 } 255 }
317 256
318 abort (); 257done:
319} 258 req->result = 0;
320 259
321static int poll_cb (); 260#else
322static void req_invoke (aio_req req); 261 errno = ENOSYS;
262#endif
263}
264
265/*****************************************************************************/
266
267enum {
268 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
269};
270
271typedef eio_req *aio_req;
272typedef eio_req *aio_req_ornot;
273typedef eio_wd aio_wd;
274
275static SV *on_next_submit;
276static int next_pri = EIO_PRI_DEFAULT;
277static int max_outstanding;
278
279static s_epipe respipe;
280
323static void req_free (aio_req req); 281static void req_destroy (aio_req req);
324static void req_cancel (aio_req req); 282static void req_cancel (aio_req req);
325 283
284static void
285want_poll (void)
286{
287 /* write a dummy byte to the pipe so fh becomes ready */
288 s_epipe_signal (&respipe);
289}
290
291static void
292done_poll (void)
293{
294 /* read any signals sent by the worker threads */
295 s_epipe_drain (&respipe);
296}
297
326/* must be called at most once */ 298/* must be called at most once */
327static SV *req_sv (aio_req req, const char *klass) 299static SV *
300req_sv (aio_req req, HV *stash)
328{ 301{
329 if (!req->self) 302 if (!req->self)
330 { 303 {
331 req->self = (SV *)newHV (); 304 req->self = (SV *)newHV ();
332 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 305 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
333 } 306 }
334 307
335 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 308 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
336} 309}
337 310
338static aio_req SvAIO_REQ (SV *sv) 311static SV *
312newSVaio_wd (aio_wd wd)
313{
314 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
315}
316
317static aio_req
318SvAIO_REQ (SV *sv)
339{ 319{
340 MAGIC *mg; 320 MAGIC *mg;
341 321
342 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 322 if (!SvROK (sv)
323 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
324 || (SvSTASH (SvRV (sv)) != aio_grp_stash
325 && SvSTASH (SvRV (sv)) != aio_req_stash
326 && !sv_derived_from (sv, "IO::AIO::REQ")))
343 croak ("object of class " AIO_REQ_KLASS " expected"); 327 croak ("object of class IO::AIO::REQ expected");
344 328
345 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 329 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
346 330
347 return mg ? (aio_req)mg->mg_ptr : 0; 331 return mg ? (aio_req)mg->mg_ptr : 0;
348} 332}
349 333
334static aio_wd
335SvAIO_WD (SV *sv)
336{
337 if (!SvROK (sv)
338 || SvTYPE (SvRV (sv)) != SVt_PVMG
339 || SvSTASH (SvRV (sv)) != aio_wd_stash)
340 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
341
342 return (aio_wd)(long)SvIVX (SvRV (sv));
343}
344
345static SV *
346newmortalFH (int fd, int flags)
347{
348 if (fd < 0)
349 return &PL_sv_undef;
350
351 GV *gv = (GV *)sv_newmortal ();
352 char sym[64];
353 int symlen;
354
355 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
356 gv_init (gv, aio_stash, sym, symlen, 0);
357
358 symlen = snprintf (
359 sym,
360 sizeof (sym),
361 "%s&=%d",
362 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
363 fd
364 );
365
366 return do_open (gv, sym, symlen, 0, 0, 0, 0)
367 ? (SV *)gv : &PL_sv_undef;
368}
369
370static void
350static void aio_grp_feed (aio_req grp) 371aio_grp_feed (aio_req grp)
351{ 372{
352 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 373 if (grp->sv2 && SvOK (grp->sv2))
353 { 374 {
354 int old_len = grp->length;
355
356 if (grp->fh2 && SvOK (grp->fh2))
357 {
358 dSP; 375 dSP;
359 376
360 ENTER; 377 ENTER;
361 SAVETMPS; 378 SAVETMPS;
362 PUSHMARK (SP); 379 PUSHMARK (SP);
363 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 380 XPUSHs (req_sv (grp, aio_grp_stash));
364 PUTBACK; 381 PUTBACK;
365 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 382 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
366 SPAGAIN; 383 SPAGAIN;
367 FREETMPS; 384 FREETMPS;
368 LEAVE; 385 LEAVE;
369 }
370
371 /* stop if no progress has been made */
372 if (old_len == grp->length)
373 {
374 SvREFCNT_dec (grp->fh2);
375 grp->fh2 = 0;
376 break;
377 }
378 } 386 }
379} 387}
380 388
381static void aio_grp_dec (aio_req grp) 389static void
390req_submit (eio_req *req)
382{ 391{
383 --grp->length; 392 eio_submit (req);
384 393
385 /* call feeder, if applicable */ 394 if (expect_false (on_next_submit))
386 aio_grp_feed (grp);
387
388 /* finish, if done */
389 if (!grp->length && grp->fd)
390 { 395 {
391 req_invoke (grp); 396 dSP;
392 req_free (grp); 397 SV *cb = sv_2mortal (on_next_submit);
398
399 on_next_submit = 0;
400
401 PUSHMARK (SP);
402 PUTBACK;
403 call_sv (cb, G_DISCARD | G_EVAL);
393 } 404 }
394} 405}
395 406
407static int
396static void req_invoke (aio_req req) 408req_invoke (eio_req *req)
397{ 409{
398 dSP; 410 if (req->flags & FLAG_SV2_RO_OFF)
411 SvREADONLY_off (req->sv2);
399 412
400 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 413 if (!EIO_CANCELLED (req) && req->callback)
401 { 414 {
415 dSP;
416 static SV *sv_result_cache; /* caches the result integer SV */
417 SV *sv_result;
418
402 ENTER; 419 ENTER;
403 SAVETMPS; 420 SAVETMPS;
404 PUSHMARK (SP); 421 PUSHMARK (SP);
405 EXTEND (SP, 1); 422 EXTEND (SP, 1);
406 423
424 /* do not recreate the result IV from scratch each time */
425 if (expect_true (sv_result_cache))
426 {
427 sv_result = sv_result_cache; sv_result_cache = 0;
428 SvIV_set (sv_result, req->result);
429 SvIOK_only (sv_result);
430 }
431 else
432 {
433 sv_result = newSViv (req->result);
434 SvREADONLY_on (sv_result);
435 }
436
407 switch (req->type) 437 switch (req->type)
408 { 438 {
439 case EIO_WD_OPEN:
440 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
441 break;
442
409 case REQ_READDIR: 443 case EIO_READDIR:
410 { 444 {
411 SV *rv = &PL_sv_undef; 445 SV *rv = &PL_sv_undef;
412 446
413 if (req->result >= 0) 447 if (req->result >= 0)
414 { 448 {
415 int i; 449 int i;
416 char *buf = req->data2ptr; 450 char *names = (char *)req->ptr2;
451 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
417 AV *av = newAV (); 452 AV *av = newAV ();
418 453
419 av_extend (av, req->result - 1); 454 av_extend (av, req->result - 1);
420 455
421 for (i = 0; i < req->result; ++i) 456 for (i = 0; i < req->result; ++i)
422 { 457 {
423 SV *sv = newSVpv (buf, 0); 458 if (req->int1 & EIO_READDIR_DENTS)
459 {
460 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
424 461
462 if (req->int1 & EIO_READDIR_CUSTOM2)
463 {
464 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
465 AV *avent = newAV ();
466
467 av_extend (avent, 2);
468
469 if (!sv_type [ent->type])
470 {
471 sv_type [ent->type] = newSViv (ent->type);
472 SvREADONLY_on (sv_type [ent->type]);
473 }
474
475 av_store (avent, 0, namesv);
476 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
477 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
478
479 av_store (av, i, newRV_noinc ((SV *)avent));
480 }
481 else
425 av_store (av, i, sv); 482 av_store (av, i, namesv);
483
484 ++ent;
485 }
486 else
487 {
488 SV *name = newSVpv (names, 0);
489 av_store (av, i, name);
426 buf += SvCUR (sv) + 1; 490 names += SvCUR (name) + 1;
491 }
427 } 492 }
428 493
429 rv = sv_2mortal (newRV_noinc ((SV *)av)); 494 rv = sv_2mortal (newRV_noinc ((SV *)av));
430 } 495 }
431 496
432 PUSHs (rv); 497 PUSHs (rv);
498
499 if (req->int1 & EIO_READDIR_CUSTOM1)
500 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
433 } 501 }
434 break; 502 break;
435 503
436 case REQ_OPEN: 504 case EIO_OPEN:
505 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
506 break;
507
508 case EIO_STATVFS:
509 case EIO_FSTATVFS:
437 { 510 {
438 /* convert fd to fh */ 511 SV *rv = &PL_sv_undef;
439 SV *fh; 512
513#ifndef _WIN32
514 if (req->result >= 0)
515 {
516 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
517 HV *hv = newHV ();
518 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
519 * chooses to make it a struct.
520 */
521 unsigned long fsid = 0;
522 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
440 523
441 PUSHs (sv_2mortal (newSViv (req->result))); 524 rv = sv_2mortal (newRV_noinc ((SV *)hv));
442 PUTBACK;
443 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
444 SPAGAIN;
445 525
446 fh = SvREFCNT_inc (POPs); 526 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
527 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
528 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
529 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
530 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
531 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
532 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
533 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
534 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
535 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
536 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
537 }
538#endif
447 539
448 PUSHMARK (SP); 540 PUSHs (rv);
449 XPUSHs (sv_2mortal (fh));
450 } 541 }
542
451 break; 543 break;
452 544
453 case REQ_GROUP: 545 case EIO_GROUP:
454 req->fd = 2; /* mark group as finished */ 546 req->int1 = 2; /* mark group as finished */
455 547
456 if (req->data) 548 if (req->sv1)
457 { 549 {
458 int i; 550 int i;
459 AV *av = (AV *)req->data; 551 AV *av = (AV *)req->sv1;
460 552
461 EXTEND (SP, AvFILL (av) + 1); 553 EXTEND (SP, AvFILL (av) + 1);
462 for (i = 0; i <= AvFILL (av); ++i) 554 for (i = 0; i <= AvFILL (av); ++i)
463 PUSHs (*av_fetch (av, i, 0)); 555 PUSHs (*av_fetch (av, i, 0));
464 } 556 }
465 break; 557 break;
466 558
467 case REQ_NOP: 559 case EIO_NOP:
468 case REQ_BUSY: 560 case EIO_BUSY:
469 break; 561 break;
470 562
563 case EIO_READLINK:
564 case EIO_REALPATH:
565 if (req->result > 0)
566 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
567 break;
568
569 case EIO_STAT:
570 case EIO_LSTAT:
571 case EIO_FSTAT:
572 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
573
574 if (!(PL_laststatval = req->result))
575 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
576 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
577
578 PUSHs (sv_result);
579 break;
580
581 case EIO_SEEK:
582 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
583 break;
584
585 case EIO_READ:
586 {
587 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
588 *SvEND (req->sv2) = 0;
589 SvPOK_only (req->sv2);
590 SvSETMAGIC (req->sv2);
591 PUSHs (sv_result);
592 }
593 break;
594
595 case EIO_CUSTOM:
596 if (req->feed == fiemap)
597 {
598#if HAVE_FIEMAP
599 if (!req->result)
600 {
601 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
602
603 if (fiemap->fm_extent_count)
604 {
605 AV *av = newAV ();
606 int i;
607
608 while (fiemap->fm_mapped_extents)
609 {
610 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
611 AV *ext_av = newAV ();
612
613 av_store (ext_av, 3, newSVuv (extent->fe_flags));
614 av_store (ext_av, 2, newSVval64 (extent->fe_length));
615 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
616 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
617
618 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
619 }
620
621 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
622 }
623 else
624 {
625 SvIV_set (sv_result, fiemap->fm_mapped_extents);
626 PUSHs (sv_result);
627 }
628 }
629#endif
630 }
631 else
632 PUSHs (sv_result);
633 break;
634
635 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
636 if (req->result > 0)
637 SvIV_set (sv_result, 0);
638 /* FALLTHROUGH */
639
471 default: 640 default:
472 PUSHs (sv_2mortal (newSViv (req->result))); 641 PUSHs (sv_result);
473 break; 642 break;
474 } 643 }
475 644
476 errno = req->errorno; 645 errno = req->errorno;
477 646
478 PUTBACK; 647 PUTBACK;
479 call_sv (req->callback, G_VOID | G_EVAL); 648 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
480 SPAGAIN; 649 SPAGAIN;
650
651 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
652 SvREFCNT_dec (sv_result);
653 else
654 sv_result_cache = sv_result;
481 655
482 FREETMPS; 656 FREETMPS;
483 LEAVE; 657 LEAVE;
658
659 PUTBACK;
484 } 660 }
485 661
486 if (req->grp) 662 return !!SvTRUE (ERRSV);
487 {
488 aio_req grp = req->grp;
489
490 /* unlink request */
491 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
492 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
493
494 if (grp->grp_first == req)
495 grp->grp_first = req->grp_next;
496
497 aio_grp_dec (grp);
498 }
499
500 if (SvTRUE (ERRSV))
501 {
502 req_free (req);
503 croak (0);
504 }
505} 663}
506 664
507static void req_free (aio_req req) 665static void
666req_destroy (aio_req req)
508{ 667{
509 if (req->self) 668 if (req->self)
510 { 669 {
511 sv_unmagic (req->self, PERL_MAGIC_ext); 670 sv_unmagic (req->self, PERL_MAGIC_ext);
512 SvREFCNT_dec (req->self); 671 SvREFCNT_dec (req->self);
513 } 672 }
514 673
515 SvREFCNT_dec (req->data);
516 SvREFCNT_dec (req->fh); 674 SvREFCNT_dec (req->sv1);
517 SvREFCNT_dec (req->fh2); 675 SvREFCNT_dec (req->sv2);
676 SvREFCNT_dec (req->sv3);
677 SvREFCNT_dec (req->sv4);
518 SvREFCNT_dec (req->callback); 678 SvREFCNT_dec (req->callback);
519 Safefree (req->statdata);
520 679
521 if (req->type == REQ_READDIR)
522 free (req->data2ptr);
523
524 Safefree (req); 680 free (req);
525} 681}
526 682
683static void
527static void req_cancel_subs (aio_req grp) 684req_cancel_subs (aio_req grp)
528{ 685{
529 aio_req sub;
530
531 if (grp->type != REQ_GROUP) 686 if (grp->type != EIO_GROUP)
532 return; 687 return;
533 688
534 SvREFCNT_dec (grp->fh2); 689 SvREFCNT_dec (grp->sv2);
535 grp->fh2 = 0; 690 grp->sv2 = 0;
536 691
537 for (sub = grp->grp_first; sub; sub = sub->grp_next) 692 eio_grp_cancel (grp);
538 req_cancel (sub);
539} 693}
540 694
541static void req_cancel (aio_req req) 695static void ecb_cold
696create_respipe (void)
542{ 697{
543 req->flags |= FLAG_CANCELLED; 698 if (s_epipe_renew (&respipe))
544 699 croak ("IO::AIO: unable to initialize result pipe");
545 req_cancel_subs (req);
546} 700}
547 701
548static void *aio_proc(void *arg); 702static void
549 703poll_wait (void)
550static void start_thread (void)
551{ 704{
552 sigset_t fullsigset, oldsigset;
553 pthread_attr_t attr;
554
555 worker *wrk = calloc (1, sizeof (worker));
556
557 if (!wrk)
558 croak ("unable to allocate worker thread data");
559
560 pthread_attr_init (&attr);
561 pthread_attr_setstacksize (&attr, STACKSIZE);
562 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
563#ifdef PTHREAD_SCOPE_PROCESS
564 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
565#endif
566
567 sigfillset (&fullsigset);
568
569 LOCK (wrklock);
570 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
571
572 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
573 {
574 wrk->prev = &wrk_first;
575 wrk->next = wrk_first.next;
576 wrk_first.next->prev = wrk;
577 wrk_first.next = wrk;
578 ++started;
579 }
580 else
581 free (wrk);
582
583 sigprocmask (SIG_SETMASK, &oldsigset, 0);
584 UNLOCK (wrklock);
585}
586
587static void maybe_start_thread ()
588{
589 if (get_nthreads () >= wanted)
590 return;
591
592 /* todo: maybe use idle here, but might be less exact */
593 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
594 return;
595
596 start_thread ();
597}
598
599static void req_send (aio_req req)
600{
601 ++nreqs;
602
603 LOCK (reqlock);
604 ++nready;
605 reqq_push (&req_queue, req);
606 pthread_cond_signal (&reqwait);
607 UNLOCK (reqlock);
608
609 maybe_start_thread ();
610}
611
612static void end_thread (void)
613{
614 aio_req req;
615
616 Newz (0, req, 1, aio_cb);
617
618 req->type = REQ_QUIT;
619 req->pri = PRI_MAX + PRI_BIAS;
620
621 LOCK (reqlock);
622 reqq_push (&req_queue, req);
623 pthread_cond_signal (&reqwait);
624 UNLOCK (reqlock);
625
626 LOCK (wrklock);
627 --started;
628 UNLOCK (wrklock);
629}
630
631static void set_max_idle (int nthreads)
632{
633 if (WORDACCESS_UNSAFE) LOCK (reqlock);
634 max_idle = nthreads <= 0 ? 1 : nthreads;
635 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
636}
637
638static void min_parallel (int nthreads)
639{
640 if (wanted < nthreads)
641 wanted = nthreads;
642}
643
644static void max_parallel (int nthreads)
645{
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (started > wanted)
650 end_thread ();
651}
652
653static void poll_wait ()
654{
655 fd_set rfd;
656
657 while (nreqs) 705 while (eio_nreqs ())
658 { 706 {
659 int size; 707 int size;
660 if (WORDACCESS_UNSAFE) LOCK (reslock); 708
709 X_LOCK (EIO_POOL->reslock);
661 size = res_queue.size; 710 size = EIO_POOL->res_queue.size;
662 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 711 X_UNLOCK (EIO_POOL->reslock);
663 712
664 if (size) 713 if (size)
665 return; 714 return;
666 715
667 maybe_start_thread (); 716 etp_maybe_start_thread (EIO_POOL);
668 717
669 FD_ZERO(&rfd); 718 s_epipe_wait (&respipe);
670 FD_SET(respipe [0], &rfd);
671
672 select (respipe [0] + 1, &rfd, 0, 0, 0);
673 } 719 }
674} 720}
675 721
676static int poll_cb () 722static int
723poll_cb (void)
677{ 724{
678 dSP;
679 int count = 0;
680 int maxreqs = max_poll_reqs;
681 int do_croak = 0;
682 struct timeval tv_start, tv_now;
683 aio_req req;
684
685 if (max_poll_time)
686 gettimeofday (&tv_start, 0);
687
688 for (;;) 725 for (;;)
689 { 726 {
690 for (;;) 727 int res = eio_poll ();
728
729 if (res > 0)
730 croak (0);
731
732 if (!max_outstanding || max_outstanding > eio_nreqs ())
733 return res;
734
735 poll_wait ();
736 }
737}
738
739static void ecb_cold
740reinit (void)
741{
742 create_respipe ();
743
744 if (eio_init (want_poll, done_poll) < 0)
745 croak ("IO::AIO: unable to initialise eio library");
746}
747
748/*****************************************************************************/
749
750#if !_POSIX_MAPPED_FILES
751# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
752# define munmap(addr,length) EIO_ENOSYS ()
753#endif
754
755#if !_POSIX_MEMORY_PROTECTION
756# define mprotect(addr,len,prot) EIO_ENOSYS ()
757#endif
758
759#define MMAP_MAGIC PERL_MAGIC_ext
760
761static int ecb_cold
762mmap_free (pTHX_ SV *sv, MAGIC *mg)
763{
764 int old_errno = errno;
765 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
766 errno = old_errno;
767
768 mg->mg_obj = 0; /* just in case */
769
770 SvREADONLY_off (sv);
771
772 if (SvPVX (sv) != mg->mg_ptr)
773 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
774
775 SvCUR_set (sv, 0);
776 SvPVX (sv) = 0;
777 SvOK_off (sv);
778
779 return 0;
780}
781
782static MGVTBL mmap_vtbl = {
783 0, 0, 0, 0, mmap_free
784};
785
786/*****************************************************************************/
787
788static SV *
789get_cb (SV *cb_sv)
790{
791 SvGETMAGIC (cb_sv);
792 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
793}
794
795static aio_req ecb_noinline
796dreq (SV *callback)
797{
798 SV *cb_cv;
799 aio_req req;
800 int req_pri = next_pri;
801 next_pri = EIO_PRI_DEFAULT;
802
803 cb_cv = get_cb (callback);
804
805 req = calloc (sizeof (*req), 1);
806 if (!req)
807 croak ("out of memory during eio_req allocation");
808
809 req->callback = SvREFCNT_inc (cb_cv);
810 req->pri = req_pri;
811
812 return req;
813}
814
815#define dREQ \
816 aio_req req = dreq (callback); \
817
818#define REQ_SEND \
819 PUTBACK; \
820 req_submit (req); \
821 SPAGAIN; \
822 \
823 if (GIMME_V != G_VOID) \
824 XPUSHs (req_sv (req, aio_req_stash));
825
826ecb_inline void
827req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
828{
829 if (expect_false (SvROK (path)))
830 {
831 SV *rv = SvRV (path);
832 SV *wdob;
833
834 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
691 { 835 {
692 maybe_start_thread (); 836 path = AvARRAY (rv)[1];
837 wdob = AvARRAY (rv)[0];
693 838
694 LOCK (reslock); 839 if (SvOK (wdob))
695 req = reqq_shift (&res_queue);
696
697 if (req)
698 { 840 {
699 --npending; 841 *wd = SvAIO_WD (wdob);
700 842 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
701 if (!res_queue.size)
702 {
703 /* read any signals sent by the worker threads */
704 char buf [32];
705 while (read (respipe [0], buf, 32) == 32)
706 ;
707 }
708 }
709
710 UNLOCK (reslock);
711
712 if (!req)
713 break;
714
715 --nreqs;
716
717 if (req->type == REQ_GROUP && req->length)
718 {
719 req->fd = 1; /* mark request as delayed */
720 continue;
721 } 843 }
722 else 844 else
723 { 845 *wd = EIO_INVALID_WD;
724 if (req->type == REQ_READ)
725 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
726
727 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
728 SvREADONLY_off (req->data);
729
730 if (req->statdata)
731 {
732 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
733 PL_laststatval = req->result;
734 PL_statcache = *(req->statdata);
735 }
736
737 req_invoke (req);
738
739 count++;
740 }
741
742 req_free (req);
743
744 if (maxreqs && !--maxreqs)
745 break;
746
747 if (max_poll_time)
748 {
749 gettimeofday (&tv_now, 0);
750
751 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
752 break;
753 }
754 } 846 }
847 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
848 {
849 *wd = (aio_wd)(long)SvIVX (rv);
850 *wdsv = SvREFCNT_inc_NN (rv);
851 *ptr = ".";
852 return; /* path set to "." */
853 }
854 else
855 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
856 }
755 857
756 if (nreqs <= max_outstanding) 858 *pathsv = newSVsv (path);
859 *ptr = SvPVbyte_nolen (*pathsv);
860}
861
862static void ecb_noinline
863req_set_path1 (aio_req req, SV *path)
864{
865 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
866}
867
868static void ecb_noinline
869req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
870{
871 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
872
873 switch (SvTYPE (rv))
874 {
875 case SVt_PVIO:
876 case SVt_PVLV:
877 case SVt_PVGV:
878 req->type = type_fh;
879 req->sv1 = newSVsv (fh_or_path);
880 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
757 break; 881 break;
758 882
759 poll_wait (); 883 default:
760 884 req->type = type_path;
761 ++maxreqs; 885 req_set_path1 (req, fh_or_path);
886 break;
762 } 887 }
763
764 return count;
765} 888}
766 889
767static void create_pipe () 890XS(boot_IO__AIO) ecb_cold;
768{
769 if (pipe (respipe))
770 croak ("unable to initialize result pipe");
771 891
772 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
773 croak ("cannot set result pipe to nonblocking mode");
774
775 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
776 croak ("cannot set result pipe to nonblocking mode");
777}
778
779/*****************************************************************************/
780/* work around various missing functions */
781
782#if !HAVE_PREADWRITE
783# define pread aio_pread
784# define pwrite aio_pwrite
785
786/*
787 * make our pread/pwrite safe against themselves, but not against
788 * normal read/write by using a mutex. slows down execution a lot,
789 * but that's your problem, not mine.
790 */
791static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
792
793static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
794{
795 ssize_t res;
796 off_t ooffset;
797
798 LOCK (preadwritelock);
799 ooffset = lseek (fd, 0, SEEK_CUR);
800 lseek (fd, offset, SEEK_SET);
801 res = read (fd, buf, count);
802 lseek (fd, ooffset, SEEK_SET);
803 UNLOCK (preadwritelock);
804
805 return res;
806}
807
808static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
809{
810 ssize_t res;
811 off_t ooffset;
812
813 LOCK (preadwritelock);
814 ooffset = lseek (fd, 0, SEEK_CUR);
815 lseek (fd, offset, SEEK_SET);
816 res = write (fd, buf, count);
817 lseek (fd, offset, SEEK_SET);
818 UNLOCK (preadwritelock);
819
820 return res;
821}
822#endif
823
824#if !HAVE_FDATASYNC
825# define fdatasync fsync
826#endif
827
828#if !HAVE_READAHEAD
829# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
830
831static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
832{
833 dBUF;
834
835 while (count > 0)
836 {
837 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
838
839 pread (fd, aio_buf, len, offset);
840 offset += len;
841 count -= len;
842 }
843
844 errno = 0;
845}
846
847#endif
848
849#if !HAVE_READDIR_R
850# define readdir_r aio_readdir_r
851
852static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
853
854static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
855{
856 struct dirent *e;
857 int errorno;
858
859 LOCK (readdirlock);
860
861 e = readdir (dirp);
862 errorno = errno;
863
864 if (e)
865 {
866 *res = ent;
867 strcpy (ent->d_name, e->d_name);
868 }
869 else
870 *res = 0;
871
872 UNLOCK (readdirlock);
873
874 errno = errorno;
875 return e ? 0 : -1;
876}
877#endif
878
879/* sendfile always needs emulation */
880static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
881{
882 ssize_t res;
883
884 if (!count)
885 return 0;
886
887#if HAVE_SENDFILE
888# if __linux
889 res = sendfile (ofd, ifd, &offset, count);
890
891# elif __freebsd
892 /*
893 * Of course, the freebsd sendfile is a dire hack with no thoughts
894 * wasted on making it similar to other I/O functions.
895 */
896 {
897 off_t sbytes;
898 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
899
900 if (res < 0 && sbytes)
901 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
902 res = sbytes;
903 }
904
905# elif __hpux
906 res = sendfile (ofd, ifd, offset, count, 0, 0);
907
908# elif __solaris
909 {
910 struct sendfilevec vec;
911 size_t sbytes;
912
913 vec.sfv_fd = ifd;
914 vec.sfv_flag = 0;
915 vec.sfv_off = offset;
916 vec.sfv_len = count;
917
918 res = sendfilev (ofd, &vec, 1, &sbytes);
919
920 if (res < 0 && sbytes)
921 res = sbytes;
922 }
923
924# endif
925#else
926 res = -1;
927 errno = ENOSYS;
928#endif
929
930 if (res < 0
931 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
932#if __solaris
933 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
934#endif
935 )
936 )
937 {
938 /* emulate sendfile. this is a major pain in the ass */
939 dBUF;
940
941 res = 0;
942
943 while (count)
944 {
945 ssize_t cnt;
946
947 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
948
949 if (cnt <= 0)
950 {
951 if (cnt && !res) res = -1;
952 break;
953 }
954
955 cnt = write (ofd, aio_buf, cnt);
956
957 if (cnt <= 0)
958 {
959 if (cnt && !res) res = -1;
960 break;
961 }
962
963 offset += cnt;
964 res += cnt;
965 count -= cnt;
966 }
967 }
968
969 return res;
970}
971
972/* read a full directory */
973static void scandir_ (aio_req req, worker *self)
974{
975 DIR *dirp;
976 union
977 {
978 struct dirent d;
979 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
980 } *u;
981 struct dirent *entp;
982 char *name, *names;
983 int memlen = 4096;
984 int memofs = 0;
985 int res = 0;
986 int errorno;
987
988 LOCK (wrklock);
989 self->dirp = dirp = opendir (req->dataptr);
990 self->dbuf = u = malloc (sizeof (*u));
991 req->data2ptr = names = malloc (memlen);
992 UNLOCK (wrklock);
993
994 if (dirp && u && names)
995 for (;;)
996 {
997 errno = 0;
998 readdir_r (dirp, &u->d, &entp);
999
1000 if (!entp)
1001 break;
1002
1003 name = entp->d_name;
1004
1005 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1006 {
1007 int len = strlen (name) + 1;
1008
1009 res++;
1010
1011 while (memofs + len > memlen)
1012 {
1013 memlen *= 2;
1014 LOCK (wrklock);
1015 req->data2ptr = names = realloc (names, memlen);
1016 UNLOCK (wrklock);
1017
1018 if (!names)
1019 break;
1020 }
1021
1022 memcpy (names + memofs, name, len);
1023 memofs += len;
1024 }
1025 }
1026
1027 if (errno)
1028 res = -1;
1029
1030 req->result = res;
1031}
1032
1033/*****************************************************************************/
1034
1035static void *aio_proc (void *thr_arg)
1036{
1037 aio_req req;
1038 struct timespec ts;
1039 worker *self = (worker *)thr_arg;
1040
1041 /* try to distribute timeouts somewhat evenly */
1042 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1043 * (1000000000UL / 1024UL);
1044
1045 for (;;)
1046 {
1047 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1048
1049 LOCK (reqlock);
1050
1051 for (;;)
1052 {
1053 self->req = req = reqq_shift (&req_queue);
1054
1055 if (req)
1056 break;
1057
1058 ++idle;
1059
1060 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1061 == ETIMEDOUT)
1062 {
1063 if (idle > max_idle)
1064 {
1065 --idle;
1066 UNLOCK (reqlock);
1067 LOCK (wrklock);
1068 --started;
1069 UNLOCK (wrklock);
1070 goto quit;
1071 }
1072
1073 /* we are allowed to idle, so do so without any timeout */
1074 pthread_cond_wait (&reqwait, &reqlock);
1075 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1076 }
1077
1078 --idle;
1079 }
1080
1081 --nready;
1082
1083 UNLOCK (reqlock);
1084
1085 errno = 0; /* strictly unnecessary */
1086
1087 if (!(req->flags & FLAG_CANCELLED))
1088 switch (req->type)
1089 {
1090 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1091 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1092
1093 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1094 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1095
1096 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1097 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1098 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1099
1100 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1101 case REQ_CLOSE: req->result = close (req->fd); break;
1102 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1103 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1104 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1105 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1106 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1107 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1108
1109 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1110 case REQ_FSYNC: req->result = fsync (req->fd); break;
1111 case REQ_READDIR: scandir_ (req, self); break;
1112
1113 case REQ_BUSY:
1114 {
1115 struct timeval tv;
1116
1117 tv.tv_sec = req->fd;
1118 tv.tv_usec = req->fd2;
1119
1120 req->result = select (0, 0, 0, 0, &tv);
1121 }
1122
1123 case REQ_GROUP:
1124 case REQ_NOP:
1125 break;
1126
1127 case REQ_QUIT:
1128 goto quit;
1129
1130 default:
1131 req->result = ENOSYS;
1132 break;
1133 }
1134
1135 req->errorno = errno;
1136
1137 LOCK (reslock);
1138
1139 ++npending;
1140
1141 if (!reqq_push (&res_queue, req))
1142 /* write a dummy byte to the pipe so fh becomes ready */
1143 write (respipe [1], &respipe, 1);
1144
1145 self->req = 0;
1146 worker_clear (self);
1147
1148 UNLOCK (reslock);
1149 }
1150
1151quit:
1152 LOCK (wrklock);
1153 worker_free (self);
1154 UNLOCK (wrklock);
1155
1156 return 0;
1157}
1158
1159/*****************************************************************************/
1160
1161static void atfork_prepare (void)
1162{
1163 LOCK (wrklock);
1164 LOCK (reqlock);
1165 LOCK (reslock);
1166#if !HAVE_PREADWRITE
1167 LOCK (preadwritelock);
1168#endif
1169#if !HAVE_READDIR_R
1170 LOCK (readdirlock);
1171#endif
1172}
1173
1174static void atfork_parent (void)
1175{
1176#if !HAVE_READDIR_R
1177 UNLOCK (readdirlock);
1178#endif
1179#if !HAVE_PREADWRITE
1180 UNLOCK (preadwritelock);
1181#endif
1182 UNLOCK (reslock);
1183 UNLOCK (reqlock);
1184 UNLOCK (wrklock);
1185}
1186
1187static void atfork_child (void)
1188{
1189 aio_req prv;
1190
1191 while (prv = reqq_shift (&req_queue))
1192 req_free (prv);
1193
1194 while (prv = reqq_shift (&res_queue))
1195 req_free (prv);
1196
1197 while (wrk_first.next != &wrk_first)
1198 {
1199 worker *wrk = wrk_first.next;
1200
1201 if (wrk->req)
1202 req_free (wrk->req);
1203
1204 worker_clear (wrk);
1205 worker_free (wrk);
1206 }
1207
1208 started = 0;
1209 idle = 0;
1210 nreqs = 0;
1211 nready = 0;
1212 npending = 0;
1213
1214 close (respipe [0]);
1215 close (respipe [1]);
1216 create_pipe ();
1217
1218 atfork_parent ();
1219}
1220
1221#define dREQ \
1222 aio_req req; \
1223 int req_pri = next_pri; \
1224 next_pri = DEFAULT_PRI + PRI_BIAS; \
1225 \
1226 if (SvOK (callback) && !SvROK (callback)) \
1227 croak ("callback must be undef or of reference type"); \
1228 \
1229 Newz (0, req, 1, aio_cb); \
1230 if (!req) \
1231 croak ("out of memory during aio_req allocation"); \
1232 \
1233 req->callback = newSVsv (callback); \
1234 req->pri = req_pri
1235
1236#define REQ_SEND \
1237 req_send (req); \
1238 \
1239 if (GIMME_V != G_VOID) \
1240 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1241
1242MODULE = IO::AIO PACKAGE = IO::AIO 892MODULE = IO::AIO PACKAGE = IO::AIO
1243 893
1244PROTOTYPES: ENABLE 894PROTOTYPES: ENABLE
1245 895
1246BOOT: 896BOOT:
1247{ 897{
898 static const struct {
899 const char *name;
900 IV iv;
901 } *civ, const_iv[] = {
902# define const_niv(name, value) { # name, (IV) value },
903# define const_iv(name) { # name, (IV) name },
904# define const_eio(name) { # name, (IV) EIO_ ## name },
905
906 /* you have to re-run ./gendef0 after adding/removing any constants here */
907 /* the first block can be undef if missing */
908 const_iv (ENOSYS)
909 const_iv (EXDEV)
910 const_iv (EBADR)
911
912 /* for lseek */
913 const_iv (SEEK_DATA)
914 const_iv (SEEK_HOLE)
915
916 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
917 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
918 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
919 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
920 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
921 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
922
923 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
924 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
925 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928
929 /* the second block will be 0 when missing */
930 const_iv (O_RDONLY)
931 const_iv (O_WRONLY)
932 const_iv (O_RDWR)
933 const_iv (O_CREAT)
934 const_iv (O_TRUNC)
935 const_iv (O_EXCL)
936 const_iv (O_APPEND)
937
938 const_iv (O_ASYNC)
939 const_iv (O_DIRECT)
940 const_iv (O_NOATIME)
941
942 const_iv (O_CLOEXEC)
943 const_iv (O_NOCTTY)
944 const_iv (O_NOFOLLOW)
945 const_iv (O_NONBLOCK)
946 const_iv (O_EXEC)
947 const_iv (O_SEARCH)
948 const_iv (O_DIRECTORY)
949 const_iv (O_DSYNC)
950 const_iv (O_RSYNC)
951 const_iv (O_SYNC)
952 const_iv (O_PATH)
953 const_iv (O_TMPFILE)
954 const_iv (O_TTY_INIT)
955
956 const_iv (S_IFIFO)
957 const_iv (S_IFCHR)
958 const_iv (S_IFBLK)
959 const_iv (S_IFLNK)
960 const_iv (S_IFREG)
961 const_iv (S_IFDIR)
962 const_iv (S_IFWHT)
963 const_iv (S_IFSOCK)
964 const_iv (S_IFMT)
965
966 const_iv (ST_RDONLY)
967 const_iv (ST_NOSUID)
968 const_iv (ST_NODEV)
969 const_iv (ST_NOEXEC)
970 const_iv (ST_SYNCHRONOUS)
971 const_iv (ST_MANDLOCK)
972 const_iv (ST_WRITE)
973 const_iv (ST_APPEND)
974 const_iv (ST_IMMUTABLE)
975 const_iv (ST_NOATIME)
976 const_iv (ST_NODIRATIME)
977 const_iv (ST_RELATIME)
978
979 const_iv (PROT_NONE)
980 const_iv (PROT_EXEC)
981 const_iv (PROT_READ)
982 const_iv (PROT_WRITE)
983
984 const_iv (MAP_PRIVATE)
985 const_iv (MAP_SHARED)
986 const_iv (MAP_FIXED)
987 const_iv (MAP_ANONYMOUS)
988
989 /* linuxish */
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
994 const_iv (MAP_GROWSDOWN)
995 const_iv (MAP_32BIT)
996 const_iv (MAP_HUGETLB)
997 const_iv (MAP_STACK)
998
999 const_iv (FIEMAP_FLAG_SYNC)
1000 const_iv (FIEMAP_FLAG_XATTR)
1001 const_iv (FIEMAP_FLAGS_COMPAT)
1002 const_iv (FIEMAP_EXTENT_LAST)
1003 const_iv (FIEMAP_EXTENT_UNKNOWN)
1004 const_iv (FIEMAP_EXTENT_DELALLOC)
1005 const_iv (FIEMAP_EXTENT_ENCODED)
1006 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1007 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1008 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1009 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1010 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1011 const_iv (FIEMAP_EXTENT_MERGED)
1012 const_iv (FIEMAP_EXTENT_SHARED)
1013
1014 const_iv (SPLICE_F_MOVE)
1015 const_iv (SPLICE_F_NONBLOCK)
1016 const_iv (SPLICE_F_MORE)
1017 const_iv (SPLICE_F_GIFT)
1018
1019 /* these are libeio constants, and are independent of gendef0 */
1020 const_eio (SEEK_SET)
1021 const_eio (SEEK_CUR)
1022 const_eio (SEEK_END)
1023
1024 const_eio (MCL_FUTURE)
1025 const_eio (MCL_CURRENT)
1026
1027 const_eio (MS_ASYNC)
1028 const_eio (MS_INVALIDATE)
1029 const_eio (MS_SYNC)
1030
1031 const_eio (MT_MODIFY)
1032
1033 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1034 const_eio (SYNC_FILE_RANGE_WRITE)
1035 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1036
1037 const_eio (FALLOC_FL_KEEP_SIZE)
1038 const_eio (FALLOC_FL_PUNCH_HOLE)
1039 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1040 const_eio (FALLOC_FL_ZERO_RANGE)
1041
1042 const_eio (READDIR_DENTS)
1043 const_eio (READDIR_DIRS_FIRST)
1044 const_eio (READDIR_STAT_ORDER)
1045 const_eio (READDIR_FOUND_UNKNOWN)
1046
1047 const_eio (DT_UNKNOWN)
1048 const_eio (DT_FIFO)
1049 const_eio (DT_CHR)
1050 const_eio (DT_DIR)
1051 const_eio (DT_BLK)
1052 const_eio (DT_REG)
1053 const_eio (DT_LNK)
1054 const_eio (DT_SOCK)
1055 const_eio (DT_WHT)
1056 };
1057
1248 HV *stash = gv_stashpv ("IO::AIO", 1); 1058 aio_stash = gv_stashpv ("IO::AIO" , 1);
1059 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1060 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1061 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1249 1062
1250 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1063 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1251 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1064 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1252 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1253 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1254 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1255 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1256 1065
1257 create_pipe (); 1066 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1258 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1259}
1260 1067
1068 reinit ();
1069}
1070
1261void 1071void
1072reinit ()
1073 PROTOTYPE:
1074
1075void
1262max_poll_reqs (int nreqs) 1076max_poll_reqs (unsigned int nreqs)
1263 PROTOTYPE: $ 1077 PROTOTYPE: $
1264 CODE: 1078 CODE:
1265 max_poll_reqs = nreqs; 1079 eio_set_max_poll_reqs (nreqs);
1266 1080
1267void 1081void
1268max_poll_time (double nseconds) 1082max_poll_time (double nseconds)
1269 PROTOTYPE: $ 1083 PROTOTYPE: $
1270 CODE: 1084 CODE:
1271 max_poll_time = nseconds * AIO_TICKS; 1085 eio_set_max_poll_time (nseconds);
1272 1086
1273void 1087void
1274min_parallel (int nthreads) 1088min_parallel (unsigned int nthreads)
1275 PROTOTYPE: $
1276
1277void
1278max_parallel (int nthreads)
1279 PROTOTYPE: $
1280
1281void
1282max_idle (int nthreads)
1283 PROTOTYPE: $ 1089 PROTOTYPE: $
1284 CODE: 1090 CODE:
1285 set_max_idle (nthreads); 1091 eio_set_min_parallel (nthreads);
1286 1092
1287int 1093void
1288max_outstanding (int maxreqs) 1094max_parallel (unsigned int nthreads)
1289 PROTOTYPE: $ 1095 PROTOTYPE: $
1290 CODE: 1096 CODE:
1291 RETVAL = max_outstanding; 1097 eio_set_max_parallel (nthreads);
1098
1099void
1100max_idle (unsigned int nthreads)
1101 PROTOTYPE: $
1102 CODE:
1103 eio_set_max_idle (nthreads);
1104
1105void
1106idle_timeout (unsigned int seconds)
1107 PROTOTYPE: $
1108 CODE:
1109 eio_set_idle_timeout (seconds);
1110
1111void
1112max_outstanding (unsigned int maxreqs)
1113 PROTOTYPE: $
1114 CODE:
1292 max_outstanding = maxreqs; 1115 max_outstanding = maxreqs;
1293 OUTPUT:
1294 RETVAL
1295 1116
1296void 1117void
1297aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1118aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1298 SV * pathname
1299 int flags
1300 int mode
1301 SV * callback
1302 PROTOTYPE: $$$;$
1303 PPCODE: 1119 PPCODE:
1304{ 1120{
1305 dREQ; 1121 dREQ;
1306 1122
1307 req->type = REQ_OPEN; 1123 req->type = EIO_WD_OPEN;
1308 req->data = newSVsv (pathname); 1124 req_set_path1 (req, pathname);
1309 req->dataptr = SvPVbyte_nolen (req->data);
1310 req->fd = flags;
1311 req->mode = mode;
1312 1125
1313 REQ_SEND; 1126 REQ_SEND;
1314} 1127}
1315 1128
1316void 1129void
1130aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1131 PPCODE:
1132{
1133 dREQ;
1134
1135 req->type = EIO_OPEN;
1136 req_set_path1 (req, pathname);
1137 req->int1 = flags;
1138 req->int2 = mode;
1139
1140 REQ_SEND;
1141}
1142
1143void
1317aio_close (fh,callback=&PL_sv_undef) 1144aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1318 SV * fh
1319 SV * callback
1320 PROTOTYPE: $;$
1321 ALIAS: 1145 ALIAS:
1322 aio_close = REQ_CLOSE
1323 aio_fsync = REQ_FSYNC 1146 aio_fsync = EIO_FSYNC
1324 aio_fdatasync = REQ_FDATASYNC 1147 aio_fdatasync = EIO_FDATASYNC
1148 aio_syncfs = EIO_SYNCFS
1325 PPCODE: 1149 PPCODE:
1326{ 1150{
1151 int fd = s_fileno_croak (fh, 0);
1327 dREQ; 1152 dREQ;
1328 1153
1329 req->type = ix; 1154 req->type = ix;
1330 req->fh = newSVsv (fh); 1155 req->sv1 = newSVsv (fh);
1331 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1156 req->int1 = fd;
1332 1157
1333 REQ_SEND (req); 1158 REQ_SEND;
1334} 1159}
1335 1160
1336void 1161void
1162aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1163 PPCODE:
1164{
1165 int fd = s_fileno_croak (fh, 0);
1166 dREQ;
1167
1168 req->type = EIO_SYNC_FILE_RANGE;
1169 req->sv1 = newSVsv (fh);
1170 req->int1 = fd;
1171 req->offs = offset;
1172 req->size = nbytes;
1173 req->int2 = flags;
1174
1175 REQ_SEND;
1176}
1177
1178void
1179aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1180 PPCODE:
1181{
1182 int fd = s_fileno_croak (fh, 0);
1183 dREQ;
1184
1185 req->type = EIO_FALLOCATE;
1186 req->sv1 = newSVsv (fh);
1187 req->int1 = fd;
1188 req->int2 = mode;
1189 req->offs = offset;
1190 req->size = len;
1191
1192 REQ_SEND;
1193}
1194
1195void
1196aio_close (SV *fh, SV *callback = &PL_sv_undef)
1197 PPCODE:
1198{
1199 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1200 int fd = s_fileno_croak (fh, 0);
1201 dREQ;
1202
1203 if (expect_false (close_fd < 0))
1204 {
1205 int pipefd [2];
1206
1207 if (
1208#ifdef _WIN32
1209 _pipe (pipefd, 1, _O_BINARY) < 0
1210#else
1211 pipe (pipefd) < 0
1212 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1213#endif
1214 || close (pipefd [1]) < 0
1215 )
1216 abort (); /*D*/
1217
1218 close_fd = pipefd [0];
1219 }
1220
1221 req->type = EIO_DUP2;
1222 req->int1 = close_fd;
1223 req->sv2 = newSVsv (fh);
1224 req->int2 = fd;
1225
1226 REQ_SEND;
1227}
1228
1229void
1230aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1231 PPCODE:
1232{
1233 int fd = s_fileno_croak (fh, 0);
1234 dREQ;
1235
1236 req->type = EIO_SEEK;
1237 req->sv1 = newSVsv (fh);
1238 req->int1 = fd;
1239 req->offs = SvVAL64 (offset);
1240 req->int2 = whence;
1241
1242 REQ_SEND;
1243}
1244
1245void
1337aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1246aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1338 SV * fh
1339 UV offset
1340 UV length
1341 SV * data
1342 UV dataoffset
1343 SV * callback
1344 ALIAS: 1247 ALIAS:
1345 aio_read = REQ_READ 1248 aio_read = EIO_READ
1346 aio_write = REQ_WRITE 1249 aio_write = EIO_WRITE
1347 PROTOTYPE: $$$$$;$
1348 PPCODE: 1250 PPCODE:
1349{ 1251{
1350 aio_req req;
1351 STRLEN svlen; 1252 STRLEN svlen;
1253 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1352 char *svptr = SvPVbyte (data, svlen); 1254 char *svptr = SvPVbyte (data, svlen);
1353 1255 UV len = SvUV (length);
1354 SvUPGRADE (data, SVt_PV);
1355 SvPOK_on (data);
1356 1256
1357 if (dataoffset < 0) 1257 if (dataoffset < 0)
1358 dataoffset += svlen; 1258 dataoffset += svlen;
1359 1259
1360 if (dataoffset < 0 || dataoffset > svlen) 1260 if (dataoffset < 0 || dataoffset > svlen)
1361 croak ("data offset outside of string"); 1261 croak ("dataoffset outside of data scalar");
1362 1262
1363 if (ix == REQ_WRITE) 1263 if (ix == EIO_WRITE)
1364 { 1264 {
1365 /* write: check length and adjust. */ 1265 /* write: check length and adjust. */
1366 if (length < 0 || length + dataoffset > svlen) 1266 if (!SvOK (length) || len + dataoffset > svlen)
1367 length = svlen - dataoffset; 1267 len = svlen - dataoffset;
1368 } 1268 }
1369 else 1269 else
1370 { 1270 {
1371 /* read: grow scalar as necessary */ 1271 /* read: check type and grow scalar as necessary */
1272 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1372 svptr = SvGROW (data, length + dataoffset); 1273 svptr = sv_grow (data, len + dataoffset + 1);
1274 else if (SvCUR (data) < len + dataoffset)
1275 croak ("length + dataoffset outside of scalar, and cannot grow");
1373 } 1276 }
1374
1375 if (length < 0)
1376 croak ("length must not be negative");
1377 1277
1378 { 1278 {
1379 dREQ; 1279 dREQ;
1380 1280
1381 req->type = ix; 1281 req->type = ix;
1382 req->fh = newSVsv (fh); 1282 req->sv1 = newSVsv (fh);
1383 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1283 req->int1 = fd;
1384 : IoOFP (sv_2io (fh))); 1284 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1385 req->offset = offset; 1285 req->size = len;
1386 req->length = length;
1387 req->data = SvREFCNT_inc (data); 1286 req->sv2 = SvREFCNT_inc (data);
1388 req->dataptr = (char *)svptr + dataoffset; 1287 req->ptr2 = (char *)svptr + dataoffset;
1288 req->stroffset = dataoffset;
1389 1289
1390 if (!SvREADONLY (data)) 1290 if (!SvREADONLY (data))
1391 { 1291 {
1392 SvREADONLY_on (data); 1292 SvREADONLY_on (data);
1393 req->data2ptr = (void *)data; 1293 req->flags |= FLAG_SV2_RO_OFF;
1394 } 1294 }
1395 1295
1396 REQ_SEND; 1296 REQ_SEND;
1397 } 1297 }
1398} 1298}
1399 1299
1400void 1300void
1401aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1301aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1402 SV * out_fh 1302 ALIAS:
1403 SV * in_fh 1303 aio_readlink = EIO_READLINK
1404 UV in_offset 1304 aio_realpath = EIO_REALPATH
1405 UV length
1406 SV * callback
1407 PROTOTYPE: $$$$;$
1408 PPCODE: 1305 PPCODE:
1409{ 1306{
1307 dREQ;
1308
1309 req->type = ix;
1310 req_set_path1 (req, pathname);
1311
1312 REQ_SEND;
1313}
1314
1315void
1316aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1317 PPCODE:
1318{
1319 int ifd = s_fileno_croak (in_fh , 0);
1320 int ofd = s_fileno_croak (out_fh, 1);
1410 dREQ; 1321 dREQ;
1411 1322
1412 req->type = REQ_SENDFILE; 1323 req->type = EIO_SENDFILE;
1413 req->fh = newSVsv (out_fh); 1324 req->sv1 = newSVsv (out_fh);
1414 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1325 req->int1 = ofd;
1415 req->fh2 = newSVsv (in_fh); 1326 req->sv2 = newSVsv (in_fh);
1416 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1327 req->int2 = ifd;
1417 req->offset = in_offset; 1328 req->offs = in_offset;
1418 req->length = length; 1329 req->size = length;
1419 1330
1420 REQ_SEND; 1331 REQ_SEND;
1421} 1332}
1422 1333
1423void 1334void
1424aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1335aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1425 SV * fh
1426 UV offset
1427 IV length
1428 SV * callback
1429 PROTOTYPE: $$$;$
1430 PPCODE: 1336 PPCODE:
1431{ 1337{
1338 int fd = s_fileno_croak (fh, 0);
1432 dREQ; 1339 dREQ;
1433 1340
1434 req->type = REQ_READAHEAD; 1341 req->type = EIO_READAHEAD;
1435 req->fh = newSVsv (fh); 1342 req->sv1 = newSVsv (fh);
1436 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1343 req->int1 = fd;
1437 req->offset = offset; 1344 req->offs = offset;
1438 req->length = length; 1345 req->size = length;
1439 1346
1440 REQ_SEND; 1347 REQ_SEND;
1441} 1348}
1442 1349
1443void 1350void
1444aio_stat (fh_or_path,callback=&PL_sv_undef) 1351aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1445 SV * fh_or_path
1446 SV * callback
1447 ALIAS: 1352 ALIAS:
1448 aio_stat = REQ_STAT 1353 aio_stat = EIO_STAT
1449 aio_lstat = REQ_LSTAT 1354 aio_lstat = EIO_LSTAT
1355 aio_statvfs = EIO_STATVFS
1450 PPCODE: 1356 PPCODE:
1451{ 1357{
1452 dREQ; 1358 dREQ;
1453 1359
1454 New (0, req->statdata, 1, Stat_t); 1360 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1455 if (!req->statdata)
1456 {
1457 req_free (req);
1458 croak ("out of memory during aio_req->statdata allocation");
1459 }
1460
1461 if (SvPOK (fh_or_path))
1462 {
1463 req->type = ix;
1464 req->data = newSVsv (fh_or_path);
1465 req->dataptr = SvPVbyte_nolen (req->data);
1466 }
1467 else
1468 {
1469 req->type = REQ_FSTAT;
1470 req->fh = newSVsv (fh_or_path);
1471 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1472 }
1473 1361
1474 REQ_SEND; 1362 REQ_SEND;
1475} 1363}
1476 1364
1365UV
1366major (UV dev)
1367 ALIAS:
1368 minor = 1
1369 CODE:
1370 RETVAL = ix ? major (dev) : minor (dev);
1371 OUTPUT:
1372 RETVAL
1373
1374UV
1375makedev (UV maj, UV min)
1376 CODE:
1377 RETVAL = makedev (maj, min);
1378 OUTPUT:
1379 RETVAL
1380
1477void 1381void
1382aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1383 PPCODE:
1384{
1385 dREQ;
1386
1387 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1388 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1389 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1390
1391 REQ_SEND;
1392}
1393
1394void
1395aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1396 PPCODE:
1397{
1398 dREQ;
1399
1400 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1401 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1402
1403 REQ_SEND;
1404}
1405
1406void
1407aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1408 PPCODE:
1409{
1410 dREQ;
1411
1412 req->int2 = mode;
1413 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1414
1415 REQ_SEND;
1416}
1417
1418void
1419aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1420 PPCODE:
1421{
1422 dREQ;
1423
1424 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1425 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1426 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1427
1428 REQ_SEND;
1429}
1430
1431void
1432aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1433 PPCODE:
1434{
1435 dREQ;
1436
1437 req->type = EIO_READDIR;
1438 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1439
1440 if (flags & EIO_READDIR_DENTS)
1441 req->int1 |= EIO_READDIR_CUSTOM2;
1442
1443 req_set_path1 (req, pathname);
1444
1445 REQ_SEND;
1446}
1447
1448void
1449aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1450 PPCODE:
1451{
1452 dREQ;
1453
1454 req->type = EIO_MKDIR;
1455 req->int2 = mode;
1456 req_set_path1 (req, pathname);
1457
1458 REQ_SEND;
1459}
1460
1461void
1478aio_unlink (pathname,callback=&PL_sv_undef) 1462aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1479 SV * pathname
1480 SV * callback
1481 ALIAS: 1463 ALIAS:
1482 aio_unlink = REQ_UNLINK 1464 aio_unlink = EIO_UNLINK
1483 aio_rmdir = REQ_RMDIR 1465 aio_rmdir = EIO_RMDIR
1484 aio_readdir = REQ_READDIR 1466 aio_readdir = EIO_READDIR
1485 PPCODE: 1467 PPCODE:
1486{ 1468{
1487 dREQ; 1469 dREQ;
1488 1470
1489 req->type = ix; 1471 req->type = ix;
1490 req->data = newSVsv (pathname); 1472 req_set_path1 (req, pathname);
1491 req->dataptr = SvPVbyte_nolen (req->data); 1473
1492
1493 REQ_SEND; 1474 REQ_SEND;
1494} 1475}
1495 1476
1496void 1477void
1497aio_link (oldpath,newpath,callback=&PL_sv_undef) 1478aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1498 SV * oldpath
1499 SV * newpath
1500 SV * callback
1501 ALIAS: 1479 ALIAS:
1502 aio_link = REQ_LINK 1480 aio_link = EIO_LINK
1503 aio_symlink = REQ_SYMLINK 1481 aio_symlink = EIO_SYMLINK
1504 aio_rename = REQ_RENAME 1482 aio_rename = EIO_RENAME
1505 PPCODE: 1483 PPCODE:
1506{ 1484{
1485 eio_wd wd2 = 0;
1507 dREQ; 1486 dREQ;
1508 1487
1509 req->type = ix; 1488 req->type = ix;
1510 req->fh = newSVsv (oldpath); 1489 req_set_path1 (req, oldpath);
1511 req->data2ptr = SvPVbyte_nolen (req->fh); 1490 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1512 req->data = newSVsv (newpath); 1491 req->int3 = (long)wd2;
1513 req->dataptr = SvPVbyte_nolen (req->data);
1514 1492
1515 REQ_SEND; 1493 REQ_SEND;
1516} 1494}
1517 1495
1518void 1496void
1519aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1497aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1520 SV * pathname
1521 SV * callback
1522 UV mode
1523 UV dev
1524 PPCODE: 1498 PPCODE:
1525{ 1499{
1526 dREQ; 1500 dREQ;
1527 1501
1528 req->type = REQ_MKNOD; 1502 req->type = EIO_MKNOD;
1529 req->data = newSVsv (pathname);
1530 req->dataptr = SvPVbyte_nolen (req->data);
1531 req->mode = (mode_t)mode; 1503 req->int2 = (mode_t)mode;
1532 req->offset = dev; 1504 req->offs = dev;
1505 req_set_path1 (req, pathname);
1533 1506
1534 REQ_SEND; 1507 REQ_SEND;
1535} 1508}
1536 1509
1537void 1510void
1511aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1512 ALIAS:
1513 aio_mtouch = EIO_MTOUCH
1514 aio_msync = EIO_MSYNC
1515 PPCODE:
1516{
1517 STRLEN svlen;
1518 char *svptr = SvPVbyte (data, svlen);
1519 UV len = SvUV (length);
1520
1521 if (offset < 0)
1522 offset += svlen;
1523
1524 if (offset < 0 || offset > svlen)
1525 croak ("offset outside of scalar");
1526
1527 if (!SvOK (length) || len + offset > svlen)
1528 len = svlen - offset;
1529
1530 {
1531 dREQ;
1532
1533 req->type = ix;
1534 req->sv2 = SvREFCNT_inc (data);
1535 req->ptr2 = (char *)svptr + offset;
1536 req->size = len;
1537 req->int1 = flags;
1538
1539 REQ_SEND;
1540 }
1541}
1542
1543void
1544aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1545 PPCODE:
1546{
1547 STRLEN svlen;
1548 char *svptr = SvPVbyte (data, svlen);
1549 UV len = SvUV (length);
1550
1551 if (offset < 0)
1552 offset += svlen;
1553
1554 if (offset < 0 || offset > svlen)
1555 croak ("offset outside of scalar");
1556
1557 if (!SvOK (length) || len + offset > svlen)
1558 len = svlen - offset;
1559
1560 {
1561 dREQ;
1562
1563 req->type = EIO_MLOCK;
1564 req->sv2 = SvREFCNT_inc (data);
1565 req->ptr2 = (char *)svptr + offset;
1566 req->size = len;
1567
1568 REQ_SEND;
1569 }
1570}
1571
1572void
1573aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1574 PPCODE:
1575{
1576 dREQ;
1577
1578 req->type = EIO_MLOCKALL;
1579 req->int1 = flags;
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1586 PPCODE:
1587{
1588 int fd = s_fileno_croak (fh, 0);
1589 dREQ;
1590
1591 req->type = EIO_CUSTOM;
1592 req->sv1 = newSVsv (fh);
1593 req->int1 = fd;
1594
1595 req->feed = fiemap;
1596#if HAVE_FIEMAP
1597 /* keep our fingers crossed that the next two types are 64 bit */
1598 req->offs = start;
1599 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1600 req->int2 = flags;
1601 req->int3 = SvOK (count) ? SvIV (count) : -1;
1602#endif
1603
1604 REQ_SEND;
1605}
1606
1607void
1538aio_busy (delay,callback=&PL_sv_undef) 1608aio_busy (double delay, SV *callback = &PL_sv_undef)
1539 double delay
1540 SV * callback
1541 PPCODE: 1609 PPCODE:
1542{ 1610{
1543 dREQ; 1611 dREQ;
1544 1612
1545 req->type = REQ_BUSY; 1613 req->type = EIO_BUSY;
1546 req->fd = delay < 0. ? 0 : delay; 1614 req->nv1 = delay < 0. ? 0. : delay;
1547 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1548 1615
1549 REQ_SEND; 1616 REQ_SEND;
1550} 1617}
1551 1618
1552void 1619void
1553aio_group (callback=&PL_sv_undef) 1620aio_group (SV *callback = &PL_sv_undef)
1554 SV * callback
1555 PROTOTYPE: ;$
1556 PPCODE: 1621 PPCODE:
1557{ 1622{
1558 dREQ; 1623 dREQ;
1559 1624
1560 req->type = REQ_GROUP; 1625 req->type = EIO_GROUP;
1626
1627 PUTBACK;
1561 req_send (req); 1628 req_submit (req);
1629 SPAGAIN;
1562 1630
1563 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1631 XPUSHs (req_sv (req, aio_grp_stash));
1564} 1632}
1565 1633
1566void 1634void
1567aio_nop (callback=&PL_sv_undef) 1635aio_nop (SV *callback = &PL_sv_undef)
1568 SV * callback 1636 ALIAS:
1637 aio_nop = EIO_NOP
1638 aio_sync = EIO_SYNC
1569 PPCODE: 1639 PPCODE:
1570{ 1640{
1571 dREQ; 1641 dREQ;
1572 1642
1573 req->type = REQ_NOP; 1643 req->type = ix;
1574 1644
1575 REQ_SEND; 1645 REQ_SEND;
1576} 1646}
1577 1647
1578int 1648int
1579aioreq_pri (int pri = 0) 1649aioreq_pri (int pri = NO_INIT)
1580 PROTOTYPE: ;$
1581 CODE: 1650 CODE:
1582 RETVAL = next_pri - PRI_BIAS; 1651 RETVAL = next_pri;
1583 if (items > 0) 1652 if (items > 0)
1584 { 1653 {
1585 if (pri < PRI_MIN) pri = PRI_MIN; 1654 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1586 if (pri > PRI_MAX) pri = PRI_MAX; 1655 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1587 next_pri = pri + PRI_BIAS; 1656 next_pri = pri;
1588 } 1657 }
1589 OUTPUT: 1658 OUTPUT:
1590 RETVAL 1659 RETVAL
1591 1660
1592void 1661void
1593aioreq_nice (int nice = 0) 1662aioreq_nice (int nice = 0)
1594 CODE: 1663 CODE:
1595 nice = next_pri - nice; 1664 nice = next_pri - nice;
1596 if (nice < PRI_MIN) nice = PRI_MIN; 1665 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1597 if (nice > PRI_MAX) nice = PRI_MAX; 1666 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1598 next_pri = nice + PRI_BIAS; 1667 next_pri = nice;
1599 1668
1600void 1669void
1601flush () 1670flush ()
1602 PROTOTYPE:
1603 CODE: 1671 CODE:
1604 while (nreqs) 1672 while (eio_nreqs ())
1605 { 1673 {
1606 poll_wait (); 1674 poll_wait ();
1607 poll_cb (0); 1675 poll_cb ();
1608 } 1676 }
1609 1677
1610void 1678int
1611poll() 1679poll ()
1612 PROTOTYPE:
1613 CODE: 1680 CODE:
1614 if (nreqs)
1615 {
1616 poll_wait (); 1681 poll_wait ();
1617 poll_cb (0); 1682 RETVAL = poll_cb ();
1618 }
1619
1620int
1621poll_fileno()
1622 PROTOTYPE:
1623 CODE:
1624 RETVAL = respipe [0];
1625 OUTPUT: 1683 OUTPUT:
1626 RETVAL 1684 RETVAL
1627 1685
1628int 1686int
1687poll_fileno ()
1688 CODE:
1689 RETVAL = s_epipe_fd (&respipe);
1690 OUTPUT:
1691 RETVAL
1692
1693int
1629poll_cb(...) 1694poll_cb (...)
1630 PROTOTYPE: 1695 PROTOTYPE:
1631 CODE: 1696 CODE:
1632 RETVAL = poll_cb (); 1697 RETVAL = poll_cb ();
1633 OUTPUT: 1698 OUTPUT:
1634 RETVAL 1699 RETVAL
1635 1700
1636void 1701void
1637poll_wait() 1702poll_wait ()
1638 PROTOTYPE:
1639 CODE: 1703 CODE:
1640 if (nreqs)
1641 poll_wait (); 1704 poll_wait ();
1642 1705
1643int 1706int
1644nreqs() 1707nreqs ()
1645 PROTOTYPE:
1646 CODE: 1708 CODE:
1647 RETVAL = nreqs; 1709 RETVAL = eio_nreqs ();
1648 OUTPUT: 1710 OUTPUT:
1649 RETVAL 1711 RETVAL
1650 1712
1651int 1713int
1652nready() 1714nready ()
1653 PROTOTYPE:
1654 CODE: 1715 CODE:
1655 RETVAL = get_nready (); 1716 RETVAL = eio_nready ();
1656 OUTPUT: 1717 OUTPUT:
1657 RETVAL 1718 RETVAL
1658 1719
1659int 1720int
1660npending() 1721npending ()
1661 PROTOTYPE:
1662 CODE: 1722 CODE:
1663 RETVAL = get_npending (); 1723 RETVAL = eio_npending ();
1664 OUTPUT: 1724 OUTPUT:
1665 RETVAL 1725 RETVAL
1666 1726
1667int 1727int
1668nthreads() 1728nthreads ()
1669 PROTOTYPE:
1670 CODE: 1729 CODE:
1671 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1730 RETVAL = eio_nthreads ();
1672 RETVAL = started;
1673 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1674 OUTPUT: 1731 OUTPUT:
1675 RETVAL 1732 RETVAL
1676 1733
1734int
1735fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1736 CODE:
1737 RETVAL = posix_fadvise (fh, offset, length, advice);
1738 OUTPUT:
1739 RETVAL
1740
1741IV
1742sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1743 CODE:
1744 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1745 OUTPUT:
1746 RETVAL
1747
1748void
1749mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1750 PPCODE:
1751 sv_unmagic (scalar, MMAP_MAGIC);
1752{
1753 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1754 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1755 if (addr == (void *)-1)
1756 XSRETURN_NO;
1757
1758 sv_force_normal (scalar);
1759
1760 /* we store the length in mg_obj, as namlen is I32 :/ */
1761 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1762 ->mg_obj = (SV *)length;
1763
1764 SvUPGRADE (scalar, SVt_PV); /* nop... */
1765
1766 if (!(prot & PROT_WRITE))
1767 SvREADONLY_on (scalar);
1768
1769 if (SvLEN (scalar))
1770 Safefree (SvPVX (scalar));
1771
1772 SvPVX (scalar) = (char *)addr;
1773 SvCUR_set (scalar, length);
1774 SvLEN_set (scalar, 0);
1775 SvPOK_only (scalar);
1776
1777 XSRETURN_YES;
1778}
1779
1780void
1781munmap (SV *scalar)
1782 CODE:
1783 sv_unmagic (scalar, MMAP_MAGIC);
1784
1785int
1786madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1787 ALIAS:
1788 mprotect = 1
1789 CODE:
1790{
1791 STRLEN svlen;
1792 void *addr = SvPVbyte (scalar, svlen);
1793 STRLEN len = SvUV (length);
1794
1795 if (offset < 0)
1796 offset += svlen;
1797
1798 if (offset < 0 || offset > svlen)
1799 croak ("offset outside of scalar");
1800
1801 if (!SvOK (length) || len + offset > svlen)
1802 len = svlen - offset;
1803
1804 addr = (void *)(((intptr_t)addr) + offset);
1805 eio_page_align (&addr, &len);
1806
1807 switch (ix)
1808 {
1809 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1810 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1811 }
1812}
1813 OUTPUT:
1814 RETVAL
1815
1816int
1817munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1818 CODE:
1819{
1820 STRLEN svlen;
1821 void *addr = SvPVbyte (scalar, svlen);
1822 size_t len = SvUV (length);
1823
1824 if (offset < 0)
1825 offset += svlen;
1826
1827 if (offset < 0 || offset > svlen)
1828 croak ("offset outside of scalar");
1829
1830 if (!SvOK (length) || len + offset > svlen)
1831 len = svlen - offset;
1832
1833 addr = (void *)(((intptr_t)addr) + offset);
1834 eio_page_align (&addr, &len);
1835#if _POSIX_MEMLOCK_RANGE
1836 RETVAL = munlock (addr, len);
1837#else
1838 RETVAL = EIO_ENOSYS ();
1839#endif
1840}
1841 OUTPUT:
1842 RETVAL
1843
1844int
1845munlockall ()
1846 CODE:
1847#if _POSIX_MEMLOCK
1848 munlockall ();
1849#else
1850 RETVAL = EIO_ENOSYS ();
1851#endif
1852 OUTPUT:
1853 RETVAL
1854
1855int
1856splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1857 CODE:
1858{
1859#if HAVE_LINUX_SPLICE
1860 loff_t off_in_, off_out_;
1861 RETVAL = splice (
1862 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1863 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1864 length, flags
1865 );
1866#else
1867 RETVAL = EIO_ENOSYS ();
1868#endif
1869}
1870 OUTPUT:
1871 RETVAL
1872
1873int
1874tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1875 CODE:
1876#if HAVE_LINUX_SPLICE
1877 RETVAL = tee (rfh, wfh, length, flags);
1878#else
1879 RETVAL = EIO_ENOSYS ();
1880#endif
1881 OUTPUT:
1882 RETVAL
1883
1884int
1885pipesize (aio_rfd rfh, int new_size = -1)
1886 PROTOTYPE: $;$
1887 CODE:
1888#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1889 if (new_size >= 0)
1890 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1891 else
1892 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1893#else
1894 errno = ENOSYS;
1895 RETVAL = -1;
1896#endif
1897 OUTPUT:
1898 RETVAL
1899
1900void
1901pipe2 (int flags = 0)
1902 PROTOTYPE: ;$
1903 PPCODE:
1904{
1905 int fd[2];
1906 int res;
1907
1908 if (flags)
1909#if HAVE_PIPE2
1910 res = pipe2 (fd, flags);
1911#else
1912 res = (errno = ENOSYS, -1);
1913#endif
1914 else
1915 res = pipe (fd);
1916
1917 if (!res)
1918 {
1919 EXTEND (SP, 2);
1920 PUSHs (newmortalFH (fd[0], O_RDONLY));
1921 PUSHs (newmortalFH (fd[1], O_WRONLY));
1922 }
1923}
1924
1925void _on_next_submit (SV *cb)
1926 CODE:
1927 SvREFCNT_dec (on_next_submit);
1928 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1929
1677PROTOTYPES: DISABLE 1930PROTOTYPES: DISABLE
1931
1932MODULE = IO::AIO PACKAGE = IO::AIO::WD
1933
1934BOOT:
1935{
1936 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1937 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1938}
1939
1940void
1941DESTROY (SV *self)
1942 CODE:
1943{
1944 aio_wd wd = SvAIO_WD (self);
1945#if HAVE_AT
1946 {
1947 SV *callback = &PL_sv_undef;
1948 dREQ; /* clobbers next_pri :/ */
1949 next_pri = req->pri; /* restore next_pri */
1950 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1951 req->type = EIO_WD_CLOSE;
1952 req->wd = wd;
1953 REQ_SEND;
1954 }
1955#else
1956 eio_wd_close_sync (wd);
1957#endif
1958}
1678 1959
1679MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1960MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1680 1961
1681void 1962void
1682cancel (aio_req_ornot req) 1963cancel (aio_req_ornot req)
1683 CODE: 1964 CODE:
1684 req_cancel (req); 1965 eio_cancel (req);
1685 1966
1686void 1967void
1687cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1968cb (aio_req_ornot req, SV *callback = NO_INIT)
1688 CODE: 1969 PPCODE:
1970{
1971 if (GIMME_V != G_VOID)
1972 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1973
1974 if (items > 1)
1975 {
1976 SV *cb_cv = get_cb (callback);
1977
1689 SvREFCNT_dec (req->callback); 1978 SvREFCNT_dec (req->callback);
1690 req->callback = newSVsv (callback); 1979 req->callback = SvREFCNT_inc (cb_cv);
1980 }
1981}
1691 1982
1692MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1983MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1693 1984
1694void 1985void
1695add (aio_req grp, ...) 1986add (aio_req grp, ...)
1696 PPCODE: 1987 PPCODE:
1697{ 1988{
1698 int i; 1989 int i;
1699 aio_req req;
1700 1990
1701 if (grp->fd == 2) 1991 if (grp->int1 == 2)
1702 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1992 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1703 1993
1704 for (i = 1; i < items; ++i ) 1994 for (i = 1; i < items; ++i )
1705 { 1995 {
1996 aio_req req;
1997
1706 if (GIMME_V != G_VOID) 1998 if (GIMME_V != G_VOID)
1707 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1999 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1708 2000
1709 req = SvAIO_REQ (ST (i)); 2001 req = SvAIO_REQ (ST (i));
1710 2002
1711 if (req) 2003 if (req)
1712 { 2004 eio_grp_add (grp, req);
1713 ++grp->length;
1714 req->grp = grp;
1715
1716 req->grp_prev = 0;
1717 req->grp_next = grp->grp_first;
1718
1719 if (grp->grp_first)
1720 grp->grp_first->grp_prev = req;
1721
1722 grp->grp_first = req;
1723 }
1724 } 2005 }
1725} 2006}
1726 2007
1727void 2008void
1728cancel_subs (aio_req_ornot req) 2009cancel_subs (aio_req_ornot req)
… …
1737 AV *av; 2018 AV *av;
1738 2019
1739 grp->errorno = errno; 2020 grp->errorno = errno;
1740 2021
1741 av = newAV (); 2022 av = newAV ();
2023 av_extend (av, items - 1);
1742 2024
1743 for (i = 1; i < items; ++i ) 2025 for (i = 1; i < items; ++i )
1744 av_push (av, newSVsv (ST (i))); 2026 av_push (av, newSVsv (ST (i)));
1745 2027
1746 SvREFCNT_dec (grp->data); 2028 SvREFCNT_dec (grp->sv1);
1747 grp->data = (SV *)av; 2029 grp->sv1 = (SV *)av;
1748} 2030}
1749 2031
1750void 2032void
1751errno (aio_req grp, int errorno = errno) 2033errno (aio_req grp, int errorno = errno)
1752 CODE: 2034 CODE:
1753 grp->errorno = errorno; 2035 grp->errorno = errorno;
1754 2036
1755void 2037void
1756limit (aio_req grp, int limit) 2038limit (aio_req grp, int limit)
1757 CODE: 2039 CODE:
1758 grp->fd2 = limit; 2040 eio_grp_limit (grp, limit);
1759 aio_grp_feed (grp);
1760 2041
1761void 2042void
1762feed (aio_req grp, SV *callback=&PL_sv_undef) 2043feed (aio_req grp, SV *callback = &PL_sv_undef)
1763 CODE: 2044 CODE:
1764{ 2045{
1765 SvREFCNT_dec (grp->fh2); 2046 SvREFCNT_dec (grp->sv2);
1766 grp->fh2 = newSVsv (callback); 2047 grp->sv2 = newSVsv (callback);
2048 grp->feed = aio_grp_feed;
1767 2049
1768 if (grp->fd2 <= 0) 2050 if (grp->int2 <= 0)
1769 grp->fd2 = 2; 2051 grp->int2 = 2;
1770 2052
1771 aio_grp_feed (grp); 2053 eio_grp_limit (grp, grp->int2);
1772} 2054}
1773 2055

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